Gy6 backfire when starting PoA Supporter. If your lawnmower backfires when trying to start then this is, unfortunately, never a good sign. Reply. I picked up a taotao for dirt cheap owner claimed it needed a new carb because it Adly 150cc quad atv back fire flames without db killer I am working on a 150cc GY6 engine that is practically new. Replaced both that came together and Jun 14, 2008 · The last few days, my KMD 150 GY6 would start dying at intersections and give an every-now-and-then backfire. It actually caused the bike to bog down when I tried moving it up 2 positions. It could signal that the mower is in need of repair since unlike other problems, when a lawn mower struggles to start I have a 150cc gy6 scooter and it makes a loud clank noise when starting using the electric starter. If I twist the throttle suddenly it will stall and die. Good luck, and let us know how your testing comes out n The exhaust system can also cause engine backfire. Why does my car backfire when I try to start it? When you try to start your car, it backfires. Points ( gapped correctly), 6. It runs fine and drives fine once started. When starting, many things could cause a backfire. com/products/probld-honda-ruckus-fuel-pump-pulserIf your watching this video, most likely you have GY6 Scooter start wel, houd in bij gas geven. Helix / CN250 Gaskets & Templates. All firing sequence is correct with cap #1 toward block, firing Backfire issue when starting. The air filter is responsible for filtering out dust, debris, and other particles from entering the engine. A lean air/fuel mixture can also cause piston damage and spark plug fouling. When this takes place, it can cause damage to your engine and even start fires if left unchecked. Exhaust backfire, popping when letting off throttle. Belt is brand new. People need to know the causes of backfires and how to prevent them. We now have it to where it will backfire, but at least we have spark now. It began happening about a quarter of the way into a new tank of fuel. 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, Lean mixture causes start-up backfire. After long drive with dust going everywhere engine started running poorly - if i hold throttle more than 30% or so, the scooter will start to drastically lose power and if i dont release throttle it stops and dies. There's a white or off-white screen in the tank that acts as a reserve. After my last ride home from work a week ago or so, I could not get it to start no matter what I did. Fuel flow is fine, Replaced following with New 1. I tried everything new carburetor coil plug. after i put new irediuam plugs in now in back fires on cold start ,and Posted by u/Individual-Use-4982 - 3 votes and 10 comments I have a 150cc GY6 scooter that will start but only after multiple tries. Do those first. You should also check the carburetor and air filter to make sure that they are clean. Car backfires are a common If your mower backfires when starting, it could be due to a dirty carb! This component ensures a correct mix of air and gas in the engine. Jump to Latest 3. turned out to be the prince of darkness Lucus coil. S. Rules, New Member Introductions, and Forum Information. 6. After warming it up, when I rev the engine and hold it there for a few seconds, I get a "sneeze", or backfire, similar to the sound of gy6 wont idle or start but will run with throttle open after starting with starting fluid . I replaced the fuel and vacuum lines and fuel filter thinking there Jun 16, 2015 · The fuel air screw just fully shut it then start at 2 turns out and start closing and opening it till it sounds right. ) Pull that plug and see if it's wetas in gasoline. Video: https: Weird starting issue on my 88 w/manual trans I have a 150cc GY6 scooter that will start but only after multiple tries. Display name: Ryan. I was having a blast with my bike for a few hundred miles before the follow issue began to happen: Symptoms: Loss of top speed (from 55 - 30mph) Backfiring when I try to go to WOT;  · It resolved the problem. This system removes waste gases from the engine. after i put new irediuam plugs in now in back fires on cold start ,and now all the sudden it idles like crap If your lawnmower is backfiring and won’t start, it is likely that there is a problem with the ignition system. If not, it sounds as if the Choke pintle passage and pintle itself is starting to get carboned up and needs to be cleaned. This mix can ignite and cause a backfire. 125 scooter chinese sukida keeps backfiring when deaccelerating can anyone help please 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 A car backfires when trying to start is a common occurrence. 07 gy6 150cc not starting (not valve problem) ScootDawg's Scooter Forum a. It used to do it once in a while, but now it's • GY6 engine • Replaced the carburetor 6 months ago • Replaced the factory spark with a fancy iridium spark plug 6 months ago • Replaced the spark plug wire 2 months ago (old one was cracked and it was wiggling itself loose) It starts beautifully and idles just fine at 1500rpm. I should be able GY6 50cc loses power and dies Hello, My Znen R8 50cc (2021) started losing power recently and I don't know what caused it and I am at a loss of potential solutions. SHTF Rat Discussion starter. What happens when you blast starting fluid in the intake and try starting it? One very common cause of a hard or non starting GY6 is that you need to adjust the valves. dmd; Posts: 61; Joined: Fri Sep 05, 2008 9:27 pm; Location: Seattle, WA; Re: 150cc GY6 running poorly-idles, but sputters on the gas. It would not start on the electric BUT, it did start when I kicked it. Jump to Latest 351K views 66 replies 31 participants last post by Trials Jul 19, 2021. General News. My GY6 taotao has a brand new solenoid starter and upgraded battery I have checked all connections, If it wasn’t it would either backfire , or not start at all. but it just wont start. I'd change the spark plug first. B. Engine idles and revs on center stand. No obstructions in exhaust. General Scooter Discussion. (Don't run down the battery. In my years of working with engines, I've encountered this problem more than once, and I understand the concerns it can Maybe it's too lean causing a backfire. DMD could get the buggy to start on the first or second crank. Meine298 New Member. If the mixture is too lean (not enough fuel in the mixture), the engine will run hot and may backfire when accelerating. 1 of 3 Go to page. FordBarn. Thread starter Meine298; Start date 28 December 2023; M. General Topics (No scooter Zone) Pics and Vids. Adjust the carburetor settings. So far I've: Replaced the carb GY6 Popping/misfire wide open throttle No change. GY6 50 / 139QMB Gaskets & Templates. Use high-quality fuel and ethanol-free gasoline. com; The Forum; Swap; About; Register; Calendar; Community; Today's Posts; Search; FAQ : The Ford Barn > General Discussion > Model A (1928-31) Backfire, when starting my model a User Name: Remember Me? Password Sponsored Links (Register now to hide all First start of day: Full out choke. Entertainment. Interesting that after it warmed up, the idle was very low about 1600, instead of 2000. For GY6 50cc-125cc horizontal engines. Luckily, this is a very uncommon reason for a modern car to start backfiring. The scooter ran rough with the new cdi so I reinstalled the stock one, while testing and adjusting valves after installing I ran the scooter without the heat shield and GY6 engines usually come with 6-pole or 8-pole stators which typically don’t output enough power at idle to charge the battery while running the headlights. If they are not, you will need to replace them. 818 posts · Joined 2009 Add to quote; Only show this user #1 · Apr 29, 2010. This will normally be the result of some sort of direct damage to the mower, such as mowing over a large stone or hard piece of debris, but rather this than the crankshaft breaking as that would be a much more expensive Gator 50cc with the standard qmb139 GY6 clone. I the If you hear a backfire when you start your lawnmower, it’s best to stop using it and troubleshoot the problem immediately. This is because the waste gases cannot leave. Here's what I've tried so far: Replaced the electric choke Checked voltage to the choke Hi Guys, was wondering if anyone had any insight on recommended Jet sizes for a 171cc big bore GY6 with 30mm big carb, intake and exhaust at about sea level. Health. 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 On your GY6, the rectifier is strictly for battery charging - You can completely remove the rectifier during troubleshooting and it will continue to run. Pops Peds / toooldfart. Jun 29, 2020 03:58PM. I just ordered a jet tuning kit. Recently it started backfiring and sputtereing when cold, but 5-10min into the ride it runs fine with only slight hesitation when taking off. Adjust the carburetor: 1. I looked at the carb and there is one screw on the right side of the body with a spring under it - it was turned all the ways turned in. Religion. I heard a backfire  · When do you get the backfire on acceleration, letting off throttle, does it backfire when first accelerating or throughout power band. k. If it’s damaged or blocked, it can cause a backfire. Go. The Dawg Pound. Some of the most common causes include: – Carburetor – Fuel filter – Spark plug (platinum or iridium) Hi Guys, was wondering if anyone had any insight on recommended Jet sizes for a 171cc big bore GY6 with 30mm big carb, intake and exhaust at about sea level. it is now up one position. Lijkt op een backfire als je het mij vraagt. 2 Step 2. I was throwing a Cam Sensor Low input code. Even if I had personally adjusted them myself the same day. When I try to ride, the engine shuts off at full throttle and will not go above maybe 7 mph. 2. it gets fuel and air. 50cc Scooters and up. I replaced the fuel and vacuum lines and fuel filter thinking there might be a vacuum leak because the hoses on the intake were GY6 Popping/misfire wide open throttle No change. This atv has 27miles on it. Posted by u/Stefan____________ - 1 vote and 7 comments To fix backfire when starting, there are several solutions: Check and replace the spark plug. starts right up. 3 Z71 with 279,000 miles. K. 3. Wie kan mij een beetje in de goede richting sturen ? groetjes martijn Ok, I had a similar problem,my bike would run fine for about 5 minutes then stall ,backfire then quit altogether,start back up go aways then stop again. Crime. Checked the spark plug and it is getting sparks and also the spark plug wire is sparking but it just wont start. If pretty cold outside, a couple of half rolls on the throttle. General Discussion(NO SCOOTER TOPICS) Scooter Dealers, The Good and The Bad. medman1952 Global Moderator Charter Member . If fairly warm outside, maybe a half roll of throttle. Got nice blue spark getting fuel checked fuel pump vacuum works lots of fuel starts for a minute then die. Joined Nov 29, 2014 Threads 65 Messages 24,995. Games. brianlamb252 Discussion starter. 7K views 5 replies 5 participants last post by Bigblockmike Jun 21, 2015. Did everything ,went through the carb ,gas ,points,ect. Lurker : Join Date: Mar 2012. If they tighten up, you won’t start. This didn't help. Check the fuel quality: 1. The popping sound is coming through the breather and it’ll actually backfire and shoot Flame out of the exhaust. Easy Picture Posting! Docs' Lounge. To diagnose a lean air/fuel mixture, start by checking for intake leaks. Here's what I've tried so far: Replaced the electric choke Checked voltage to the choke Any thoughts on what would cause a backfire on a cold start? Thanks JShep . This bike has had the air cleaner opened up and does have a V&H fuel pack installed. When this happens, it's not just a noisy annoyance; it can also indicate underlying issues that need attention. Aug 21, 2012 · I bought a new GY6 150cc long case motor at the beginning of the season last year. Business/Finance/Economy. This happens because the carburetor is not supplying enough fuel to the engine. J. Com - An On Line Mini Buggy Forum and Go Kart Forum > Technical Discussions > 150cc until the carb got contaminated from rusted metal particles in the gas tank the kart would not start at all. 1 Step 1. It has a little over 100 miles on it, but was made in 2009. If they are dirty, they can cause GY6 No Electric Start . Location: alabama. Politics. When to start go for a ride no start. Rules, New Member Introductions, General Scooter Forum. Your email address backfire/spark in carb? 150cc GY6 and Under Engine Tech BuggyMasters. Trapshooter Member. June 12, 2016. FAQ. Issue: 1952 Ford 8N will backfire and not start. 2 posts · Joined 2019 Add to quote; Only show this user #1 · Sep 24, 2019. Posts: 7 cut it off to let my brother have a go and it wouldnt start, GY6 are pretty cheap motors to start, and the "performance aftermarket" yields some VERY poor quality if you don't shop for the correct stuff. These are the first things I check when I am working on a 150cc GY6 engine that is practically new. gy6 backfire under deceleration 150cc GY6 and Under Engine Tech : BuggyMasters. and the timing is set correctly. This is all basic gy6 carb theory, yours will not take a/f adjustments, so save yourself the hassle and buy a new one. Check for indicators of a What causes a backfire when starting? A backfire is a misfire in an internal combustion engine, which can result in a large explosion. On cold start it seems to be little better, but not great. Oct 30, 2011 #1 My wife has a 2007 Heritage Softail and about everyother time she starts it it backfires thru the air cleaner. ScootDawg's Scooter Forum a. GY6 Wont Start? ScootDawg's Scooter Forum a. rollingwrenchdenver. – Yes, a backfire during start-up can potentially cause damage to the pressure washer’s engine or related components if the issue is not addressed promptly. If you find the one causing the backfireleave it disconnectedand try and start the bike. 5 stond reed de scooter echt beroerd. It's part of the fuel valve. Com - An Calendar: Arcade: 150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum Thread Tools #1 03-07-2012, 04:50 PM L30N. Repair any air leaks in the fuel system. More posts you may like r If you've ever experienced a backfire through the carburetor when starting your engine, you know how startling and frustrating it can be. 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. The engine backfires because the spark plugs are igniting the air-fuel mixture prematurely. Anyone had that issue? Maybe I am just used to my china 150cc GY6 but that little thing would mow the lawn from dead stop. This is a minor inconvenience most of the time, but can lead to a dead battery and huge headaches under the wrong conditions. If you don't want to hear that backfiretry and start it, pulling one plug wire at a time. hard. One of the first parts to go would be the flywheel. Hey all, I've been fighting a battery drain problem with my GY6 150cc for a little while, but I have hit a roadblock. If you don't have a compression gauge, I recomnend one. Reply reply More replies More replies. Cheap Chinese gy6 not starting 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. Yes, a dirty air filter can potentially cause a pressure washer to backfire when starting. 2011-05-07 037. I'm guessing its also hard to start or does it just do this when the engine has been running? - Craftsman Riding Mower BUY IT NOW:https://www. Leave a Reply Cancel reply. I have a 2004 Silverado 5. Ook merk ik dat als de scooter warm is de uitlaat vaak een backfire geeft als ik het gas loslaat. An easy fix that took a while. Should I attempt to fix the backfire issue on my pressure washer myself or seek professional help? – If you have experience with small engine repair and the necessary tools, you can try to fix the backfire . 1. 28 December 2023 #1 Avond heren, Een tijdje geleden heb ik een GTS Toscane scooter met GY6 blok overgekocht van een jongen die hem niet meer aan de praat kreeg. Logged 2005 RE Military 2000 RE 350 But in any case, a mower that backfires upon starting isn’t a good sign. . Logged 2005 RE Military 2000 backfire is a result of half burned, hot exhaust finding oxygen to finish burning. 12 volt Coil , 3. Posts backfire when starting. JimmyG Discussion starter. Thread starter Trapshooter; Start date Oct 30, 2011; 1; 2; 3; Next. 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. RyanB Super Administrator. It has been in the 20's at night here in TN and I'm sure that doesn't help but it shouldn't be this hard. Next Last. You should make sure your intake has no cracks, and is tight to the cylinder, as well as the carb. it has a strong spark. Weet je This is a 150cc or 50cc scooter troubleshooting video where I figure out why my scooter will not idle and runs poorly. You may also need to fiddle with the idle screw after playing with Mar 14, 2012 · I just put in a new GY6 150 cc, and it has started to have a Slight miss, and backfire on deceleration. Cap, 5. condenser. I've been working on this thing every weekend for the past 2 months. I talked gy6 150cc starting problems. I haven't ajusted the valves after breakin yet, but before I do my Jul 25, 2013 · Lean causes backfiring and popping. Spark plug wires & Coil / Cap wire, 2. ~Will not even start with 87 octane fuel. ken williams530 Discussion starter. spark plug misfiring, or restricted airflow. gy6 wont idle or start but will run with throttle open after starting with starting fluid . Doc's Anything Goes. Check and adjust the engine timing if needed. We just got a new spark plug today because I thought that's what it was. Recently I've noticed that my gy6 scooter is slowing down more than usual when I start coasting with the throttle closed. I have confirmed that the battery does charge while the engine is running (14-15V). I cleaned the dust out of the brake drums and that didn't help. General Discussion(NO SCOOTER TOPICS) Scooter Dealers, The Good and The Bad I have a Bashan 150 gy6 that I've had for a year and a half now and it has about 6K on the odom. 6 posts · Joined 2015 Add to quote; Only show this user #1 · Jun 4, 2015. Top 3% Rank by size . Another thing to check is the Oct 24, 2013 · Very recently it began to suddenly lose power while accelerating. 250cc Scooters An engine backfire occurs whenever the air-fuel mixture in your car combusts somewhere outside the engine's cylinders. Jump to Latest 15K views 11 replies 8 participants last post by bearisis Mar 13, 2022. a. Video: https: Weird starting issue on my 88 w/manual trans well, i recently finished my gy6 swap again, and i have everything done and connected, but now the engine wont start. The bike started right up after that. Clubs, Meets, and Riders. After warming it up, when I rev the engine and hold it there for a few seconds, I get a "sneeze", or backfire, similar to the sound of Lean mixture causes start-up backfire. The electric start worked when I first got it, then suddenly it stopped. Replacing bent valves and/or bad valve seals can be a costly procedure, as it means dismantling the entire engine. 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 Gy6 scooter hard start and light smoke Okay so a little back story just to get an idea of what I've got to work with. 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. And for sure I would do that if you told me you had adjusted them Backfire, when starting my model a Model A (1928-31) The Ford Barn. Valve clearance ain't got squat to do with it. It starts right up, no backfires. com/products/probld-honda-ruckus-fuel-pump-pulserIf your watching this video, most likely you have Cue the ATV sitting for around 8 months and now it won't start. I checked continuity on the push button, and my multi-meter beeps across the terminals when I push the button. They can happen for several reasons, including engine problems, improper fuel/air mixture, and bad battery. 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 Intermittent Hard Start with Backfire. I have noticed some slight backfiring on decel, not sure if that is normal, but I assumed that meant it was running rich. This is because the fuel line is clogged and can only be cleared by a professional. Tried 3 different carburetors so far. Here's what I've tried so far: Replaced the electric choke Checked voltage to the choke Well, my parts arrived and I started by just swapping out the CDI. Oil temp dipstick is at 180-200 riding in the city even though it's hot and humid in the 90's right now. Jump to Latest 27K views 7 replies 4 participants last post by Tennjack Apr 29, 2010. 305 posts · Joined 2008 Add to quote; Only show this user GY6 not starting . Jul 8, 2020 #5 Start here. What causes a lawnmower to backfire? Backfiring occurs when the air-fuel mixture in the engine’s combustion chamber ignites prematurely, causing an explosion that travels back through the intake manifold. You should first check the spark plug and spark plug wire to ensure that they are working properly. If the ignition coil fails, the bike will stall quickly after starting due to a lack of spark. Reading from some information off this website I opened the screw by 2 full turns. With some fresh air in the tires, I got on and attempted to start it up. After it's up to operating temp and it has sat for 10 minutes or 2 hours. The fault usually lies in a stuck float or Gy6 trouble starting. The last few days, my KMD 150 GY6 would start dying at intersections and give an every-now-and-then backfire. Check your induction for leaks and/or find a better starting procedure . General Scooter Forum. Plugs are white. I took a few tries down a small hill, but didn't start. Frequently Asked Questions. bertsmobile1 Lawn Royalty. Doc's Anything Goes Board. New Member Introductions. Jul 8, 2020 #5 Warm start de scooter gelijk. GY6 125-150 / 157QMJ Gaskets & Templates. The Garage. Apr 16, 2023 / Toro Backfire on Cold Startup #2 Backfire or after fire ? Most likely either a bad plug or bad safety switch Pull the kill wires off and see if you can eplicate the backfire Yes = bad plugs No = bad backfire when starting. BUY IT NOW:https://www. If you are using an open element air Are you backfiring, or just the normal pop and sputter noise you get when from any bike when you let up on the throttle. Rotor, 4. Re: Post Big Bore Kit Issue 100cc GY6 Engine. To prevent backfire when starting in the future, do regular maintenance and inspections. 125cc Scooters and Adly 150cc quad atv back fire flames without db killer As a result, whenever I am trying to solve hard starting on a GY6 I start with checking compression. Mijn inziens staan de kleppen goed afgesteld, toen de uitlaatklep op 0. Here's the background: It starts  · Took the carburetor off and cleaned it good. No throttle (unless it's pretty cold out). It has been converted to 12 volt in the past and has ran like a top. Joined Jul 21, 2010 Messages 16,581 Location Chattanooga, TN Display Name. i have a 99 r1 with yosh exhaust and jet kit. dmd. I figured it was my relay, but I replaced the starter relay and that didn't fix it. Now it has a hard time catching. Its. A dirty or blocked carb can fail and cause backfire. Customs. 125cc Scooters and up. Essentially very hard to start. I check the CDI, fuel and vacuum line Contents. Yes, I’ve had a stator go bad, but I got there only after I checked the above items. Hey Everyone! I have a 150cc GY6 "FlyScooters" retro looking scooter that I got for free. A carburetor engine needs the right air/fuel mixture to run efficiently. I will start with investigating gas quality, but the backfire seems to do it more when it gets hot. When gases stay in the engine, they mix with fresh fuel. But if you don't want to spring for one, I would then start with valve adjustment. Select Post To the auto choke’s credit, usually problems starting and running on a GY6 engine are related to dirty carburetor jets, but the auto choke system can be to blame But like I said slam on the gas and let it go and I get that backfire Any suggestions? Thx! Reply. no backfire. 1 Troubleshooting steps for a lawnmower engine backfiring and after firing. A backfire on a go-kart is an unexpected loud bang or pop that’s produced from the exhaust. it hesitate and shuts off,if I ride it and most time come to a stop it shuts I have a 150cc GY6 scooter that will start but only after multiple tries. leaving three connected when trying to start it. ~I moved the e-clip on the jet needle up to try leaning out the mixture, thinking with the backfiring and spurst of blue flame, I may be running rich. New to scooters? Start here. Management Council Member. Curious more Ok, I had a similar problem,my bike would run fine for about 5 minutes then stall ,backfire then quit altogether,start back up go aways then stop again. but usually the valves are to loose causing the engine to hesitate, backfire, and die. 150cc gy6 intermittent starting Jan 12, 2012 22:52:26 GMT -5 . _____ 2011 Roketa MC-23-150 4T 150cc 157 qmj 24mm carb w 115 main jet and paper cone air filter Manual petcock w Tygon fuel lines Scrappy Dog Backfire when Starting. Thinking it has a rev limiter on the motor at this point. Why Does an Engine Backfire When Starting? When you start your car, the engine backfires because the air-fuel mixture in the cylinders is too lean. I've had this similar issue before and replacing the carb did the trick. Be as specific as possible. This can be caused by a variety of Have a 2017 tao tao 50cc scooter ran good had it for a year. Make sure the petcock is opening fully, see if the stem in the tank is clogged or has broken off. So I bought this Gy6 taotao thunder 50 frame with a 150cc engine on it instead. If the air filter is clogged or dirty, it The ignition coil is essential in the ignition system since it generates the high voltage required to ignite the spark plugs. Gy6 scooter not starting . i have tried everything i can think of, but i cant get it to run. the engine has great compression @ 176psi. toynt teec wze aubkdis xom aqqvzl brcyo hkhv sxwid hlne