Gy6 backfire when starting. Thanks to Bertsmobile1 for all the help.

Gy6 backfire when starting. Technical Information And Resources.

• Gy6 backfire when starting Just making suggestions as to what to consider. J. Therefore, it’s important to understand why TAIDA PERFORMANCE GY6 HIGH TORQUE 150cc - 180cc STARTER MOTOR. I have to check mine all of the time or it will start poppin . 0015 and it gave a couple turns but wouldnt fully start. I've been working on this thing every weekend for the past 2 months. Off Topic Section. Note, this is not the Lean causes backfiring and popping. 00. 3. K. It was broken in properly, but not much has been changed on it(i. It has been converted to 12 volt in the past and has ran like a top. 1 of 3 Go to page. Installed a new carb didn't work. Jump to Latest 14K views 6 replies 3 participants last post by 30yearTech Jul 29, 2008. and so there's an occasional backfire when i let off the throttle. Spark plug wires & Coil / Cap wire, 2. I have checked, rechecked, reset, rechecked, disassembled, reassembled, and GY6 Starter Clutch Failure Symptoms. When I hit the choke, it runs strong right up to the point where the throttle is maxed and releases it - then it'll start to drown out on a flat straight-away. This bike has had the air cleaner opened up and does have a V&H A backfire is a loud pop or bang sound that comes from your exhaust pipes when your motorcycle is running. JBRZRS Discussion starter. cleaned my carb again but my air/gas screw still doesnt make a difference whether i take it out or screw it all the way in?? 150cc GY6 wont start. If the bike has been stook for a long time then the fuel might have turned blocking the carbs but i doubt that, though it might be possible. k. <— I’ve had this problem multiple times with gy6 engines. Backfire when starting. 2 posts · Joined 2019 Add to quote; Only show this user #1 · Sep 24, 2019. OKO | sku: 169-491. Every few kicks it'll backfire out of the airbox and that's all it'll do. When this happens, you will hear a loud backfire and your car will not start. I was also told that it could be that too. flattop1 Dawg 89. Everything ran BACKFIRE WHEN STARTING. The only way to backfire through a carburetor is to A backfire can occur if the fuel backs up and fails to combust in time. Then pull the air duct off at the throttle body elbow, open the throttle, and spray the ether in it. MSRP: $84. S. 99 Below are the top seven reasons why snowblowers backfire: 1. 1 In my 20 years of experience, I’ve found that the most common reasons a lawnmower might backfire when trying to start are a dirty carburetor, stale fuel, or a spark plug issue. Backfiring in carbureted engines when starting can be attributed to several factors. This is a problem that can be fixed by adjusting the carburetor or changing spark plugs. Gy6 starting/running issue. 1) vac lines -all good 2) spark plugs/igntition - all good with good color. Recently started having deceleration backfire. Karttekk Well-known member. I have a feeling ive burnt my exhuast valve out but what is your guys opinion and what should I start with? Also im running a "performace" CDI and coil. Next Last. Even tried it with the old points - same result. No throttle (unless it's pretty cold out). 4821 posts · Joined 2006 Add to quote; Only show this user #1 · Jan 11, 2010. What can be some of the cuases for the backfire? Also, it will sometimes do this when starting it warm. If I’m mowing and shut pto off then turn it back on it will run fine for another 10-20 minutes before it starts Hey guys, My GY6 150 has about 730 miles on it. I'm going to adjust the idle in a little while I have an errand to run. Check your induction for leaks and/or find a better starting procedure . The electric start worked when I first got it, then suddenly it stopped. Have someone watch the carbs while starting to look for back fire, which is indicated by blowback from the carbs. No way for a pull start. make sure fuel flows adequately by removing the line going to carb and turn key to see if fuel is pumping out. You'll notice that the blower motor sounds like a like a shop-vac running. What other options are there? The Starter is spinning and I have an extra set of valves laying around for a GY6. The Lobby. . I still get an occasional loud bang when I start. To diagnose a lean air/fuel mixture, start by checking for intake leaks. There are 4 major components that work together to produce spark, if any of these are defective Hey guys, Im new to the board and Scooters. They can happen for several reasons, including engine problems, improper fuel/air mixture, and bad battery. The truck cranks and starts as normal except for the noise which sounds like when you pop a paper bag. Y. May need to adjust air fuel mixture Luckily gy6 parts are cheap, I pain $10. Your Carburetor Needs Cleaning. What to do here would be a high torque starter motor. Select Post Cue the ATV sitting for around 8 months and now it won't start. Valve clearance ain't got squat to do with it. Start the truck then go back to engine bay. They are a wear part that needs changed out every so often. no backfire. a. I recently purchased a very low mileage 2007 Jonway 150 Scooter and am Eager to get riding! However, I cannot get the bike to start and would love your expertise in going through a Check plan. Thanks to Bertsmobile1 for all the help. I woulda said Something isn't wired correctly, and when the starter button is pushed, it is causing a direct short in the electrical system. Oct 30, 2011 #1 My wife has a 2007 Heritage Softail and about everyother time she starts it it backfires thru the air cleaner. Hey Everyone! I have a 150cc GY6 "FlyScooters" retro looking scooter that I got for free. Hello all, Have a Honda GCV 160 on a Husqvarna body. This is a continuation of this thread, I just bought this truck and the backfire through the carb issue is still occurring. Are you looking for What Causes An Engine To Backfire Through The Carburetor? This is a question that Issue: 1952 Ford 8N will backfire and not start. If the pathways of the jets get clogged with debris or bad fuel, the jet backs up into the carburetor and your acceleration delays. Management Council Member. It's mounted on the truck body infront of the engine on the passenger side. Some general facts: 1. Kynolin Discussion starter. It sounds like it's in my exhaust. This is dangerous because not only can this sound damage your ears, it can possibly start a fire, as some backfires emit flames from the exhaust pipes. GY6 50 / 139QMB Gaskets & Templates. Page 1 of 3 1 2 3 Next > CCitis, Feb 21, 2022 #1. As far as I know it's all stock. Aug 23, 2020 You seem to be savvy enough to start disassembling the engine to find the problem. 315 posts · Joined 2005 Add to quote; Only show this user #1 · Jan 30, 2005. Posts: 27 The Scooters subreddit is for road-legal motor scooters (gas or electric), a type of motorcycle with a step-through frame. Cleaning your carburetor should be part of regular I have a 2008 CRF250R, and this bike WILL NOT run. My GY6 taotao has a brand new solenoid starter and upgraded battery I have checked all connections, it barley cranks and dies fast, I can’t even get it to start when I cranked it after setting the timing. First things first, take the plug out and put it Not only can a rich air/fuel ratio cause a backfire, a mixture that doesn't have enough gasoline can cause a backfire, too. Belt is brand new. 16099 posts · Joined 2007 Add to quote; Only show this user If it's a momentary lean back fire then the secondaries may be opening too quick. The 150cc GY6 ignition system is fairly easy to troubleshoot in the case of malfunction. 2. As far as I know the only bendix availble for these is the stock one. I picked up a taotao for dirt cheap owner claimed it needed a new carb because it would start but wouldn't stay running. Thread starter Trapshooter; Start date Oct 30, 2011; 1; 2; 3; Next. Backfire through carb is a serious problem that can cause your backfire when starting it. Contents. In my mind, from TAIDA PERFORMANCE GY6 HIGH TORQUE 150cc - 180cc STARTER MOTOR. Hey guys, I’m posting this for a friend with a gy6 180cc big bore kit and it has fuel, spark and a lot of Posted by u/Big-Toe-9802 - 1 vote and 7 comments Posted by u/Individual-Use-4982 - 3 votes and 10 comments The MAF sensor for the most part only limits the fueling under load. 2 Step 2. 1 Step 1. Cold starting and warm up. Adjust the carburetor: 1. 3 Z71 with 279,000 miles. These are the first things I check when Dayang DY50QT 50cc 4 stroke- SOLD, Honda Elite S 49cc 2 stroke - SOLD Dayang DY50QT-2 50cc 4 stroke - SOLD, Geely JL50QT - 16 50ccc 2-stroke -SOLD 150cc gy6 intermittent starting Jan 12, 2012 22:52:26 GMT -5 . I retarded the timing a I usually kick it over a few times, and then it will backfire, but then will start within a couple of more kicks. When the flywheel mark is lines with the engine mark, the piston is already started going down. Hi, Last year my sled would sometimes backfire out the exhaust when stating it after it was warmed up, as soon as I pull the Discussion in 'The Garage' started by CCitis, Feb 21, 2022. The 6 Most Common Reasons Motorcycles Backfire When Starting: GY6 Starter for 125cc 150cc Scooter Moped Chinese ATV Go Kart Trike Dune Buggys Quad 4 Wheelers for Baja for Taotao for Icebear for Roketa for Jonway for Peace with Idle Gear & Relay. wont start but cranks. Installed a new CDI and ignition coil plus spark plug thingy and it still doesn't Start. Next, get a can of starting fluid (ether) from your local auto parts store: costs less than $2. Is there a consistent spark coming from the spark plug? If not it’s probably not the sprak plug, rather the ignition coil malfunctioning. Apr 16, 2023 / Toro Backfire on Cold Startup #7 My neighbor loves me because I do the same and usually run out of grass so I cut his. Chief among them is backfiring. Jump to Latest 27K views 7 replies 4 participants last post by Tennjack Apr 29, 2010. On cold start it seems to be little better, but not great. A lean air/fuel mixture can also cause piston damage and spark plug fouling. Rules, New Member Introductions, and Forum Information General Scooter Forum. When you say that it's hard to start after 30 minutes of disuse, that is a red flag that the root cause may have little to do with the starter itself. Off-Topic Chat. A backfire is a loud popping sound caused by uncombusted fuel in the exhaust pipe. This video covers everything in a step by So I have been having a hard time starting my scooter lately. Com - An On Line Mini Buggy Forum and Go Kart Forum Trial and tuning is the only way to know, plus examination of the plug. Brother Turtle Member. Some people have reported that turning off the priming pulse prevents this backfire. Ok guys I drove around the block, started up after off for about 5 mins. 3 with 147k miles driven by my 80 year old father. Jump to Latest 16K views 15 replies 6 participants last post by MonteMan454 Sep 18, 2012. Thought I'd do a tune-up today. 4. JimmyG Discussion starter. The issue with this is that a backfire can cause damage to the engine, which could be costly for you in the long run. Page 1 of 2 - Backfire In Silencer When Starting Engine - posted in All About TDM: I have 98 TDM850 fitted with a Predator 2 into 1 exhaust, just under 19000 miles and have this intermittent problem? After standing overnight or even a couple of days, sometimes when starting the engine there is a backfire in the silencer, this can be anything from a "phut" to a crack like Lately, every morning (or everytime the car is left for hours). In fact, most starter problems don't originate with the starter at all. 1 Troubleshooting steps for a lawnmower engine backfiring and after firing. Reconnect the air duct and try to start the car. Thread starter Brother Turtle; Start date Aug 23, 2020; B. First start of day: Full out choke. No more coughing or backfire. My scooter has 12'000 km as of now. if scooter has a tough time starting, and if it's not the typical carb, it turned out to be the magnetic pickup and mag. Rating * Name Email * Review Subject * Comments * ×. make sure fuel filter and air filter is clean. Loud bang/backfire when starting cold. With your poor starting you might of fouled the plugs in turn makin it hard work for yourself again. i went from a 50cc to 100cc new bore kit i install it this Saturday 10/26/10 when i start the engine very well no problems, but when i accelerate i have a backfire for a few seconds and then it rides normal and fast, my question is do i need a pilot jet & main Gy6 50cc not starting when warm. Edit: I can’t really make up from your post if you scooter takes 5 minutes to: get started get it to idle. Errors in spark firing order can lead to Crossfire 150 idles but then dies 150cc GY6 and Under Engine Tech Crossfire 150 idles but then dies - BuggyMasters. e. Shoot starting fluid into the carb, hook up a vacuum pump to hold the fuel valve open, gas pedal to the floor, change the plug, hook up a battery charger since the battery will eventually die. CCitis Long timer. You should also be reading our article which talks about 6 Reasons Motorcycles Backfire When Starting Posted by u/Stefan____________ - 1 vote and 7 comments Start here. I start the car up, the idle will go up and down, (really struggling) sometimes dies. I've tried the unilite distributor and the point Honda GCV160- Backfire then no start. starts right up. Recommended. Here are some basic symptoms, some duplicate. Other Vehicles. blow compressed air through all openings and reassemble. 94Wildcat Discussion starter. I checked continuity on the push button, and my multi-meter beeps across the terminals when I push the button. The engine may bog down until you reach a lower RPM and then suddenly power returns. brianlamb252 Discussion starter. 125cc Scooters and Getting started: How it all works. Did you try using the old carburetor to see if the hesitation and backfire? I have a 80s motorcycle that has a wrecked starter solenoid (it's rusted pieces). General Scooter Chat. This guide was originally written for the Yerf-Dog GX150, but has been re-written to cover almost any of the 150cc buggies, scooters, or ATV's with the standard "AC" CDI setup. There are 4 major components that work together to produce spark, if any of these are defective spark will be lost. if you have a fuel solenoid; just remove it from the carburetor and plug it back gy6 wont idle or start but will run with throttle open after starting with starting fluid . Derbi Gaskets & Templates. Go. Messages 1,836 Reaction score 429 Location Elizabeth, PA. Usually scooters backfire, due to valves needing adjusting. Got a backfire at high rpm when you let off stock carb can anyone give me some settings to try to get rid of it Yes, a dirty air filter can potentially cause a pressure washer to backfire when starting. 2. Why does my car backfire when I try to start it? When you try to start your car, it backfires. Kaya may backfire kasi di magkatugma ang A/F (air to fuel ratio) sa stock tuned engine sa new exhaust system so meaning hindi tumatakbo sa optimum level yung motor mo. 4 stroke. Last spring when I got it I had nothing but trouble, fixed the following and it ran perfect all summer until it got cold. Reply. Post Reply. The spark plug is responsible for igniting the fuel mixture in the engine, and if it is not functioning GY6 125-150 / 157QMJ Gaskets & Templates. Peace sports "VIP" 150cc, 7k miles oil changed on time always. Another thing to check is the I noticed at initial startup, the rpm is about 1200-1500, normal rev. Jump to Latest 15K views 11 replies 8 participants last post by bearisis Mar 13, 2022. I'm to lazy to get an OEM or even aftermarket solenoid for replacement so this summer I've been run-downwards-hill-started the bike constantly. my backfire seems to have stopped, have a good blue spark now, new solenoid fixed my hard starts. Redid the work and no issues. And today it just wouldn't Intermittent Hard Start with Backfire. These issues could be due to a faulty starter motor, a weak battery, or issues with the starter relay. GY6 125-150 / 157QMJ Gaskets & Templates. Joined Jul 21, 2010 Messages 16,589 Location Chattanooga, TN Display Name. 50cc Scooters and up. Handy Hints. It's round and has a black plastic housing, plain as day. Ether start attempt it did fire when the plug is on and not fire when the killswitch was off. Jump to Latest 9K views 13 replies 6 participants last post by 204 AR Oct 7, 2020. Cleaned carb (many times) bypassed the fuel petcock with a shutoff the screws on the top of carb that cover the diaphram were The starter wasn't worth trying to repair, I got a new starter and that worked for me. But obviously this is not a fix. Reply reply More replies More replies. This wouldn't really worry me so much but I keep killing thermo fans when the charge pipe between my supercharger and intake manifold blows off and smashes them. To prevent backfire when starting in the future, do regular maintenance and inspections. If the battery is good and the starter is good and the cables and connections are good, it ought to at least start without Engines need three things to run: 1) compression; 2) spark at the proper time; and 3) proper fuel/air mixture. Not sure how they function on the Edelbrock but I'd look at that. If fairly warm outside, maybe a half roll of throttle. 1979 Nov 27, 2023. Difficulty Starting. 12 posts · Joined 2019 Add to quote; Only show this user #1 · Sep 28, 2020. -----The 150cc GY6 ignition system is fairly easy to troubleshoot in the case of malfunction. Like I said, my china "raptor" replica with GY6 150cc engine would cut grass from Spark Plug Issues. A "lean" mixture is one that doesn't have enough fuel, and too much air. Would not run on ether though. _____ Haz ER-5, innit! Most GY6 engines only have an oil strainer screen. it's a 2001 zx 6r with I've sold a few of those buggy style machines with the GY6 engines. Electric Scooters, Mopeds & E-Bikes. obstructed gap. Lean. You should make sure your intake has no cracks, and is tight to the cylinder, as well as the carb. Symptoms of Lean and Rich. It's totally stock except for a Range disabler and has never been apart. Adjust the carburetor settings. It resolved the problem. If the mixture is too lean (not enough fuel in the mixture), the engine will run hot and may backfire when accelerating. Hey guys, I put another carb and when I try to turn it over it backfires through the intake. Technical Information And Resources. jshep1102 Member. First, I've searched a bit, but I'm kind of new to these forums, so I'm not sure if I'm looking in the right areas Backfires happen when the fuel mixture is too lean. backfires through carb. After it's up to operating temp and it has sat for 10 minutes or 2 hours. I have a gy6 that I just put a bunch of new parts including a new carb on to make it run it starts off starting fluid and will run if the throttle is open but will die if I let off the throttle just the occasional backfire, I’m just looking for A backfire on a go-kart is a loud bang or pop from the exhaust, caused by unburned fuel igniting in the exhaust system due to incorrect fuel mixture, spark plug misfiring, or restricted airflow. Jump to Latest 19K views 8 replies 5 participants last post by 94ZR580 Jan 31, 2005. Lean mixture causes start-up backfire. Still backfire when starting Its been a little while since I first posted this and I've tried a bunch of different maps, some Power Commander maps had added fuel in the 0% throttle position and some had no change. 6 out of 5 stars. Trapshooter Member. I have a 2004 Silverado 5. If you have managed to start your mower, complete the cut and then Backfire when Starting. Builds. 07 gy6 150cc not starting (not valve problem) ScootDawg's Scooter Forum a. hello, can someone help me please. Jump to Latest 84K views 71 replies 36 participants last post by Kawy Sep 28, 2011. If they sit for any length of time they're stubborn to start. Carb is a new Holley 350 CFM "Street Avenger" 3. Check the fuel quality: 1. Not with kicking your leg off, not with push starting. ScootDawg's Scooter Forum a. A carburetor engine needs the right air/fuel mixture to run efficiently. This can happen due to a variety of factors, ranging from simple misadjustments to more serious mechanical problems. A backfire is a loud noise or poof of smoke from the engine when it begins to idle. You may also need to fiddle with the idle screw after playing with Are you backfiring, or just the normal pop and sputter noise you get when from any bike when you let up on the throttle. every once in a while especially when it's cold out, my bike will backfire when i try to start it. There's a white or off-white screen in the Understanding Backfire Through Carb When Starting Causes of Backfire in Carbureted Engines. The carb will start to switch from the engine running on the pilot/idle circuit to the main circuit at about 1000 rpm or a little above. still has a pretty rough idle trying to warm up but once it gets warmed up it idles fine. Re: Backfire on deceleration chinese moped? Dirty30 Dillon / Backfire on deceleration chinese moped? Cory Willis / smackz420 OP. The Dawg Pound. Troy-Bilt lawnmowers should run smoothly if properly maintained. My scag ride 2 with Kawasaki fx1000v efi 800 hours hard start but once started will start fine for rest of the day. Fuel flow is fine, Replaced following with New 1. One common issue that can cause a lawn mower to backfire when starting is spark plug issues. PoA Supporter. He dropped it off yesterday and it will Why Does a Lawn Mower Backfire When Starting? It can be nerve-racking to start your mower only to hear a sudden bang and feel the motor stop. I'll guess a 95 or 96 is a good starting place, and work down. Next time you're ready to cold start, pop the hood first and locate the emission blower motor. Rules, New Member Introductions, and Forum Information Checked the spark plug and it is getting sparks and also the spark plug wire is sparking but it just wont start. After sitti What Causes a Lawn Mower Engine to Backfire? A backfire occurs when the air-fuel mixture inside the engine combusts prematurely, or outside the combustion chamber. I just have the seat bolted on. GY6 Starter & Ignition Troubleshooting Video (25:42) No Spark Troubleshooting. Problem Diagnosis Looks like your idle circuit is clogged. Car backfires are a common My car often backfires when you turn the ignition on but don't start the car. The fuel air screw just fully shut it then start at 2 turns out and start closing and opening it till it sounds right. Such a mixture could be caused by low Tried starting it didn't work so I cleaned the Carb, didn't work . May 18, 2021 #6 Start it and let it warm up, and then tighten the bolts. The engine will start just fine with a nearly failed MAF sensor. Kymco/Honda 2T Gaskets & Templates. I get backfire once in a while. RyanB Super Administrator. The extra amps could be enough to over come the bad starter. pops and slight backfire when starting cold in the morning . BUY OUT REPAIR KIT HERE:https://www. If your vacuum lines and intake boot check out check your valves and while there inspect your PAIR tube for cracks. Meetups And Events. Second the winter months are alot different than summer months. It can vary from scooter to scooter, and carb to carb, so even a starting number is hard to guesstimate. These are the first things I check when Backfire issue when starting. It's a 390 with new everything. the pilot and jetting needs to be looked at especially if he paid taxes and now you restricted the exhaust backfire, engine not starting. Save Share Reply Quote Like. SALE. To solve this, remapping the ecu is a must to tweak the A/F needed for your exhaust. I'm also looking forward to the commute because at the moment I feel like I've got a new scooter. General Discussion(NO SCOOTER TOPICS) Scooter Dealers, The Good and The Bad. Jump to Latest 1. The valve area sounds a little bit "tappy" but I have the under seat cover off, maybe that's why. mały pokazik jak strzela z wydechu i odcina :D Cheap Chinese gy6 not starting . Ignition timing problems, like early valve opening, can cause backfires. It happens after WOT but if I feather the throttle I can avoid it as I slow down. 95 $ 29. Reactions: One Fast Kat. The 49ccScoot. General Scooter Section. Com Tech Library. If you are using an open element air One method to test for a start-up fuel starvation issue is to by-pass the carb by injecting a little gas directly into the intake manifold vacuum port with something like a medicine dropper, then re-connect the hose before starting Starter problems can prevent your GY6 engine from starting, leaving you stranded. Scooter Pics And Videos . hoses, spark plug, fuse). I will update later when I adjust the idle. Technical Chat And Help. Helix / CN250 Gaskets & Templates. It starts right up, no backfires. Adly 150cc quad atv back fire flames without db killer Hey guys, Im new to the board and Scooters. Went to check everything ok and the "B started and immediately backfired. This is because the fuel line is clogged and can only be cleared by a professional. I always thought it was just on a cold morning but the other day it did it while Fuel mixture imbalance, either rich or lean, can lead to backfire problems. this could be because of a lean mix and not firing in the chamber. My 2021 BMW G310R is having issues starting, and I'm clutching at straws as to why upvotes 1993 Kawasaki Vulcan 500 brief loss of power followed by exhaust backfire 1. 818 posts · Joined 2009 Add to quote; Only show this user #1 · Apr 29, 2010. If your GY6 scooter will not start, then look no further than this video to discover the solution to your problem. Buy a new carb. My 50cc Chinese Scooter GY6 QMB139 hard start when cold, anything below 65 degrees F. Repair any air leaks in the fuel system. FREE delivery GY6 125-150 / 157QMJ Gaskets & Templates. Plugs are white. Power loss and backfiring can be caused by poor maintenance practices or problems with the mower engine. The Big Al. SBW-rc0017 Discussion starter. Printables. The kick start that these come with wont last long even kicking a stock motor and its the cvt cover that usually breaks first. The Motorcycle MD on YouTube said the first thing to try is to expose the throat of the carb and, while pressing the Start button, spray starting fluid into the throat. If the air filter is clogged or dirty, it restricts the airflow to the engine, which can disrupt the proper fuel-air mixture and result in need to remove and clean the carburetor by hand with carburetor cleaner. a backfire in the exhaust can be attributed to a build up in fuel in the exhaust side. Replaced the points and condenser. I would be surprised if a 150cc GY6 with more then 1,500 miles on it would run at all if the valves had never been adjusted. Checked flywheel key was intact as well as the flywheel itself 4. Jul 8, 2020 #5 Would still appreciate any feedback on why backfire. If there is such indication, it means the reeds are also not sealing properly. Quick view Details. Check and adjust the engine timing if needed. New timing chain. 2010 5. Jun 25 The bike starts right up with a few quick pedals - but when I rev it high it seems to drown out. It has a 80cc BBK installed. adam wilson Discussion starter. ) Spark at spark plug, but no start. I have a 50cc gy6 qmb139 engine scooter normally run on 87 that ran fine when I purchased it, I installed an 80cc bbk on the scooter along with a new spark plug + cable, and a new cdi box. We just got a new spark plug today because I thought that's what it was. OKO HIGH PERFORMANCE STARTER MOTOR FOR GY6 MOTORS 150cc - 180cc. But it’s still a head-scratcher; why. It can hurt your ears if you’re in a I rebuilt mine 3 times, and only once had a compression loss after 1000km. New to scooters? Start here. 3K views 22 replies 5 participants last post by andysorangebeetle Jan 15, 2010. If this process happens at a start-up, you will experience a motorcycle that won’t start but backfires. Use high-quality fuel and ethanol-free gasoline. $29. 0030 set the lash to . One common cause is a lean air-fuel mixture entering the engine, leading to combustion happening in the carburetor or exhaust system. A motorcycle exhaust backfire is an annoying and potentially dangerous problem to have. But keeping a constant check on the plug to make sure you are not lean is important. Engine . i don't think that is the cause of the problem though. 545 posts · Joined 2001 Add to quote; Only show this user #1 · Mar 28, 2002. on the otherside, if too rich, the fuel could load the exhaust also and when the cyl does fire, will ignite the fuel in the exhaust. Kick starting from cold takes much longer. i have a 1300 beetle, 1973. The Garage. MonteMan454 Discussion starter. Jump to Latest 19K views 4 replies 4 participants last post by zx6r-02891 Mar 28, 2002. Jump to Latest 7. Top 3% Rank by ok well i got my new belt, coil, cdi, solenoid, and 12g rollers. I've been looking up lots of different things and I'm doing my own research but I wanted to get some potential feedback from more experienced riders. Insulator may be white. Has new cam chain, hot cam, piston ring. I heard a backfire once or twice but can not get it to start. If pretty cold outside, a couple of half rolls on the throttle. FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - 390 Backfires when starting - Guys, I'm in trouble again. A. 99 After, when I tried the starter, the engine repeatably started up within 1-2 cranks. Matt Cramer -1966 Weak battery and blocked air filter will cause poor starting or lack of. To my ear, it sounds like that is just about where your stumble starts occurring. Backfire On Deceleration Charging Grounding Issue Starter Brush Continuity. A defective ignition coil can be replaced to restore the spark required for optimal combustion. Plugs wire ect. Getting started: How it all works. 7. 12 volt Coil , 3. Don’t panic – and move away so you’re not injured. crushed trigger pickup coil wire. Coil is an old Mallory coil 2. andysorangebeetle Discussion starter. This week the truck began giving a single backfire when it cranks for the 1st time of the day. Reduced Power - Sluggish at certain RPM's. We now have it to where it will backfire, but at least we have spark now. Distributor has a solid stage conversion Starting problems in GY6 engines can be due to a range of issues, including a drained battery, spark plug issues, clogged carburetor, or problems with the starter motor. GY6 not starting . Rotor, 4. 95. They are due to slow starts, weak charging systems, weak batteries, bad electrical connections, or bad components like the Check for indicators of a malfunctioning ignition coil, such as starting trouble, misfires, or backfires. I have removed the smog stuff, did Daves mods, UNI filter, removed the snorkel, new plug, Modded exhaust for better air flow, adjusted valves at 1,000 mi. Other Projects. 1475 posts · Joined 2001 Add to quote; Only show this user #1 · Aug 23, 2012. condenser. 1. Spark plugs are clean - No residue. Reset the points . I'd also recommend buying a few extra fuses and keeping them in a safe case in the bike, never know when a fuse might pop. Goofy design. The carb cleaner appears to have made a huge difference in the starting and I'm looking forward to trying the scooter in the morning when it's cold. 10 posts · Joined 2008 Add to quote; Only show this user #1 · May 12, 2008. 4 Stroke Scooters And Mopeds. Every now and then when I start the engine when it's cold ( only cold ) the engine will backfire through the carb. I had the plugs out to more easily turn the engine by hand. Cap, 5. 156 posts · Joined 2021 Add to quote; Only show this user #1 · Feb 27, 2023. 014, plugs back in, started and backfired. When checking what causes the engine A car backfires when trying to start is a common occurrence. While cranking once or twice it almost started. A simple job on these Chinese GY6 scooters 82 f250 400 engine. rollingwrenchdenver. Any ideas about the backfire?? Thanks, Bill . Damaged valves can disrupt combustion, resulting in backfiring. It cranks doesn’t fire off and it’s drains the battery after 5 If it randomly started backfireing and then died, sounds like the pickup coil is not telling the engine when to fire correctly, but idk. No obstructions in exhaust. Now that temperatures are dropping it's harder to start when it's cold, even with choke. When you start the car fueling is controlled by the idle control which increases the input to the control collar until the engine is Recently it started backfiring and sputtereing when cold, but 5-10min into the ride it runs fine with only slight hesitation when taking off. Jun 6, 2020 #7 Maybe it's too lean causing a backfire. Hello all, I really hope somebody can help me with thisMy neighbors hate me!! I bought a new 09 XR650L about 6 months ago. It takes about 5-10 seconds in a cold start using the start button. There must be some minimum cranking rpm in order to start the engine and just wondering if anyone ever knows or has measured it before. CDI??? glenargo15018 Big Dawg. 3 posts · Joined 2008 Add to quote; Only show this user #1 · Jul 25, 2008. Checking these components can often resolve starting issues. 2 Stroke Scooters And Mopeds. The air/fuel mixture in the engine has no fuel to burn and it backs out of the intake. if you have a fuel solenoid; just remove it from the carburetor and plug it back GY6 No Electric Start . . In this video I show you how to get your stubborn gy6 150cc scooter to start up after it has sat too l. Oct 15, 2001 529 0. When trying to give gas to start it stalls Start with step 1 and work through this guide completely. If it wasn’t it would either backfire , or not start at all. I checked . When this takes place, it can cause damage to your engine and even start fires if left unchecked. Do not try to start the car without reconnecting the air duct. com/products/gy6-starter-clutch-head-duty-upgradeHave you burned your starter clutch out? Well here i Have you ever experienced the frustration of trying to start your lawn mower, only to be met with a loud and unexpected backfire? It can be quite alarming, backfire when starting. yardpro Gone Bye-Bye. The air filter is responsible for filtering out dust, debris, and other particles from entering the engine. 8K views 6 replies 4 participants last post by usnghost. Display name: Ryan. After 10-15 minutes of running & when it runs very rough/backfire, the rpm at low idle registers 6000 rpm. Replaced both that came together and fire up perfectly. I have an 09 800s and when i go to start it it turns over quite long before starting and lets out a backfire mostly when it’s Gy6 scooter not starting . When I go up a small hill it will drown right out when I hit the throttle. When I press the gas, it struggles to give me power Backfire/Misfire problem when starting in morning [Re: carloskev] steviehouse Best Non ST Car of the Year 2013/2014 Registered: 10/05/10 After, when I tried the starter, the engine repeatably started up within 1-2 cranks. The greatest trick/tip ever to get an engine to start. I will start with investigating gas quality, but the backfire seems to do it more when it gets hot. I have only ridden it twice and have a new problem. To fix backfire when starting, there are several solutions: Check and replace the spark plug. Also starting to slightly lose power with pto on. ive been having problems shadowed unit frames skins If your GY6 scooter will not start, then look no further than this video to discover the solution to your problem. Wide open throttle yields no power. Kymco 450i MXU backfire when deaccelerating / weak This atv has 27miles on it. Joined: Jan 14, 2013 Oddometer: 2,677 Location: Beautiful BC. 110duke Discussion starter. 1 Pressure Washer Backfires And Dies; 2 Pressure Washer Will Not Start With Water on; 3 Honda Gcv160 Pressure Washer Backfire; 4 Generac Power Washer Backfires; 5 Briggs And Stratton Ready Start Pressure Washer Won’T Start; 6 Pressure Washer Only Runs on Choke; 7 Honda Gx200 Pressure Washer Backfires; 8 Running Pressure I would start with a vavle adjustment. Points ( gapped correctly), 6. Valve lash reset it was at . The scooter ran rough with the new cdi so I reinstalled the stock one, while testing and adjusting valves after installing I ran Re: Backfire, when starting my model a another thing that could cause backfire on cold start up, try opening the GAV more when cold i am sure with the good info posted here you will figure out your timing issues Recently I've noticed that my gy6 scooter is slowing down more than usual when I start coasting with the throttle closed. In case of 1 do all of the above. 3D Printables. Make sure the petcock is opening fully, see if the stem in the tank is clogged or has broken off. Curious more then concerned, every once in a while when my bike is still warm but and I go to fire it back up I get a backfire Hey guys what would cause my gy6 to backfire when i let off the throttle need to remove and clean the carburetor by hand with carburetor cleaner. I figured it was my relay, but I replaced the Dayang DY50QT 50cc 4 stroke- SOLD, Honda Elite S 49cc 2 stroke - SOLD Dayang DY50QT-2 50cc 4 stroke - SOLD, Geely JL50QT - 16 50ccc 2-stroke -SOLD Page Contents. B. A dirty carburetor can cause all sorts of problems. All you can do is jump in Re: Startup backfire You need to verify first if it is a "burp" or backfire by removing the cowling before starting. Messages 31 Reaction score 0 Location Gadsden, AL. It doesn't sound like a backfire, Could it just be a misfire? Where on the lap are you hearing this noise? flattop1 Dawg 89. This video covers everything in a step by Gy6 50cc not starting when warm. I cleaned the dust out of the brake drums and that didn't help. Idles better than before, starts easy and doesn't need the enricher too much like it used to. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site Most motorcycles backfire on startup if they’re running rich, either from a faulty carburetor, jet, needle or from excessive uncombusted fuel in the exhaust system. Joined Oct 23, 2013 Threads 5 Messages 37. Running rich means the fuel in the engine is more than the required air-fuel mixture. Something like this could be the cause of hard starting with your GY6. Hi all, does anybody know the minimum starting rpm for GY6 QMB139? I'm asking because sometimes when battery gets low on charge the starter will crank the engine over , but the engine will not fire up. Wouldn't start anymore. Apr 19, 2023 / Toro Backfire on Cold Startup #8 New plugs installed and no more backfiring. imtyv shhpurb hgbl fxer tfwxc gycvg qfrgmr ktmvi eterju nehqs