Scooter sputters at full throttle

Scooter sputters at full throttle. Max speed is 35 and it's rough. acts like it is starving for fuel. 1. You have an offroad model and not an S I hope. I can back it to about half throttle with the blades on and go easy with the hydros and it will maintain speed. My son has a ktm 50 and the other day at the track it had a weird sputter it ran ok just had a weird sputter in a spot in the throttle. Nov 4, 2023 · Carburetor Issue. It doesn't sound like rev limiter as the "sputter" doesn't get quicker or closer together. Starts fine, runs great up to about 20mph, then sputters. ***. 6. If anything, it's running worse. When I would start getting on the throttle it would perform normally up until about 3/4 throttle then it would start sputtering or die but sometimes it would successfully go full throttle. Re: sputter at full throttle. The larger 150cc carb may be allowing more air, not more fuel since the throat size is larger. If it revs you have a vacuum leak. Mabey vapor lock. Apr 20, 2016 · The first 1/3rd of throttle is terrible, sputters, bogs and is useless. 040" It dies not Jul 24, 2016 · The cable is probably adjustable on a hold-down on the carb. I had a similar situation. :huh: Jul 11, 2015 · From a dead stop if you put it to the floor it starts cutting out at around 6000 RPM and keeps climbing in speed and RPM. Jul 9, 2010 · 2. Motorcycle sputtering is characterized by intermittent power loss when you shift to the next gear and try to twist the throttle hard in acceleration. One jet is for idle/low speed. #1. Make sure the actual choke flipper on the carb goes all the way open (full down position?), then tighten the screw. Granted it has two carbs, but the vent that allows the diaphragm to open up the throttle slide was partially plugged. "It has a ball bearing and spr. 5. I have a modified exhaust, CDI, Coil/Wire, New plug, new fuel filter, cleaned carburetor, larger jet and a modified filter. Idles and revs fine in Part unless I cant seem to adjust the idle speed to anything less than 850 rpm's Carburetor is Holley Truck Avenger and the distributor is MSD Street Fire HEI that is new with Taylor wires and the plugs are gapped at 0. Hey I'm not sure if anyone had posted about this yet but I've got a 2005 arctic cat 650 v2, owned it for just over a year, put a snorkel on if as soon as I brought it home put a brand new hmf slip on exhast on a couple months ago. Almost sounds like it's cutting out but I'm pretty sure that isn't it as it is happens infrequently. If it Surges ahead meaning it runs good - It is LEAN 2. Now, it sounds like it idles good but it just sputters when I give it more than a little bit of throttle. The problem could also be its not getting fuel but too much air, lol. Easy fixes include using the correct fuel, cleaning dirty parts, and replacing the damaged components. The bike spits and sputters with any throttle while in gear, usually starts and idles fine. 1- idle screw. Interestingly, the idle (both '01 and '03) is very smooth, even with the VF3's; the sputter is only a problem at part throttle light cruise and goes away at higher speed cruise. Jul 30, 2023 · By escooty / July 30, 2023. Nov 4, 2009 · 7 posts · Joined 2009. ️ scooter spray painters. I checked the oil and it doesn't smell like diesel. Mar 17, 2010 · 3 posts · Joined 2010. if you catch it in time you can grab the clutch and feather the throttle and it will clear back up but if you ever let it cut off it takes a little bit to get it started back up. I tried to raise the needle one more groove, but then it ruined it all, so I stick with the middle position for the needle. Hey folks. May 8, 2010. There are 3 notches on the needle. A faulty carburetor is the most common reason why your scooter sputters as you accelerate. If the scooter is stock, this will be in the middle. Clean any residue from each plug contact and plug port. Okwell ive changed the fuel filter, the rectifier and the fuel pump. If it runs in reverse like mine did there is a fix. While running it full throttle on flat roads doesn't result in it shutting off it is still not recommended in the manual. This is a buddies ride, he is replacing the fuel filter and checking the vent lines for kinks today. Jul 11, 2023 · Air Intake Blockage: A clogged air filter or a malfunctioning throttle position sensor (TPS) can restrict airflow, resulting in hesitation during acceleration. If you were to have a temperature gauge, you would see temperature going up at half throttle and go Nov 28, 2022 · A motorcycle that bogs simply means the engine sputters or stalls at full power due to a lack of gasoline. It does fine as long as you don't go past 3/4 full throttle. ** IF ON THE FIRST TURN IT DOES NOTHING OR IDLE GOES DOWN- GO to 2. May 28, 2011 · 4 posts · Joined 2011. 13 posts · Joined 2015. Jun 17, 2013 · 2007 Yamaha vino 125 sputters at full throttle. 50 Pilot. Overfilling the sump with oil caused the oil flood May 2, 2019 · 2000 vt1100C sputters at full throttle at around 85mph, what can resolve this issue? Apr 18, 2022 · The common causes of 2 stroke bogging at full throttle include using the wrong gas mix, dirty or clogged air filters, damaged spark plugs or barrel gaskets, and damaged intake manifold gaskets. Jul 17, 2013 · All maintenance done on time per the manual. Apr 25, 2022 · ️ scooter sprite my little pony. Push the thumb paddle on the handle bars full right (open). Oct 24, 2013 · If I twist the throttle quickly it coughs and sputters and drops back to about 30mph. In other words, your sync theory is backwards. This however makes it pretty hard to drive. Now when I hit full throttle (no matter what gear) once it hits about 6k rpm, there is a In this article, I have explained the most common causes of a car sputtering when accelerating and how to address them. it moves through the three as the throttle position increases. Naturally, Jun 20, 2008 · Post by harris23 onJun 20, 2008 at 2:27pm. Move the needle up to the top slot and put it back together. May 7, 2024 · There’s nothing quite as exhilarating as twisting the throttle bar on your motorcycle and feeling the wind rush past you. Gas in tanks, valve open. Apr 26, 2009 · When you close the throttle, the mixture tends to become lean. while using full throttle. I have a 27hp vertical shaft kohler command on a husqvarna zero turn that sputters under load at full throttle. Mar 12, 2017 · Mar 12, 2017. If it sat for a minute or 2, i can rev it up in neutral, until i put it in gear and get halfway up my short driveway. These are just a few reasons for two-stroke Nov 10, 2010 · If the tank cap isn't venting properly it will even show up when you do the first test of the auto petcock. May 8, 2010 · Messages. I have a 96 T100 3. Oct 10, 2010 · 1 post · Joined 2010. Most Likely wrong air filter. Especially on a two stroke, the petrol and air mix works as a coolant, but that is also partially effective on a 4 stroke. Sputters at full throttle a little bit then seems to go away. #4. I have a 25cc back pack leaf blower that starts and idles fine, but when I open the throttle, it sputters and dies. -Stock Head: 49cc. When gummed up it starts to stick restricting fuel so you think it's a igniton, fuel pump or carb problem. It has ran great up until last week. Jun 14, 2011 · ADJUST YOUR RUEL RATIO: 1. If im cruzing at say 1/4 throttle and twist it to full it hesitates then takes off. Accelerate through the gears until the throttle is at full throttle (a slight uphill is the best place for this). Clogged Fuel Injector. Adjusting the needle height with the clip position is the simplest step to see if it corrects your issue. On some rides the same thing happens a second time at about 45 mph. So let’s take a deeper look at the issues causing this sputtering so we can troubleshoot your issue and get you rolling on the road in no time! 1. #1 · Nov 4, 2009. This wasnt the biggest deal but it was strange. Other times it just dies. Loosen the screw on the carb holddown (carb end of the cable) and slide the cable sheet. GY6 Splutter/Misfire at Full Throttle. C4 General Discussion - Sputters when I floor it - My 1988 corvette has started to sputter when you stand on it, not matter what rpm. Put it back together, still runs the same. Lately it has been sputtering, under a heavy throttle condition, with a loss of power, and low fuel mileage. Jul 17, 2009 · 3 Answers. Changed my spark plug and adjusted my idle screw. Sync is more about pulling away from idle at very low throttle than at wider open, the percentage differences in unsynced carbs become smaller with larger throttle openings. Instead of pushing the scooter forward and pressing the accelerator CAREFULLY push it backwards, lift the front wheel and press the accelerator. I just cant figure out whats going on. 95 Main. Once warmed up the bike will pull strong but once up to full speed and full throttle it will hesitate some then after a few times seems to go away. . #1 · Dec 27, 2015. If your scoot has fuel filter, it may need replacing. Disconnect the fuel line (make sure its in the 'ON' position) disconnect the vacuum line that connects to the back of the petcock. This can happen due to a leak or clogged fuel lines or a weak spark by bad or worn spark plugs, ignition coil, or spark plug wires. There are two common types of bogging: lean bog and rich bog, distinguishable by how the bike sounds when you throttle. But if you give it full throttle from 0 throttle, it sputters for a second or two before actually going full throttle. You might have some crud in your gas tank. "It has a ball bearing and spring in it. Oct 19, 2023 · All gasoline engine vehicles need spark, air, and fuel to operate. #1 · Oct 10, 2010. #1 · Mar 17, 2010. After a while of sucking on the vacuum line the flow from the gas draining into the container will begin to diminish as a partial vacuum is created in the fuel tank. #5. Lean bogging and rich bogging, which may be distinguished by the sound the bike makes when you throttle, are the two prevalent varieties of bogging. The problem is when you really get on it and start going through the gears it'll sputter and backfire at high rpms. The problem ended up being the crank shaft position sensor. Answered in 4 minutes by: Motorcycle Mechanic: RichardG. A fuel injector is an electronically controlled valve that receives pressurized gasoline from the fuel pump. Dec 12, 2012 · Bogs down under throttle (typically greater than 25%)but you can rev ityou just can't leave it WO. Dec 27, 2015 · thespirit Discussion starter. ️ scooter sprite micro. When a dirt bike bogs, it simply means it’s not getting enough fuel and the engine sputters or stalls at full throttle. 3- jet size. Aug 1, 2015 · Post by Alleyoop onAug 1, 2015 at 11:33am. Jan 24, 2020 · For this type of motorcycle bogging on acceleration, riders might notice this as a lack of immediate power when they twist the throttle, resembling the sensation of riding in a higher gear than necessary, which hampers acceleration and makes the bike feel bogged down. If I twist the throttle very slowly and back off a bit just when it starts to cough and sputter, then after about 3 or 4 minutes it will clear up and I can continue to accelerate at a normal pace. Just picked up a 2004 foreman 450s with only 600 miles on it. 2- needle position. Jun 26, 2007 · Jun 28, 2007. If engine is stock keep the or Pull the slide out with the needle attached. Dirty or Clogged Air Filter. Alleyoop. There are many Youtube vids this is one . My 06 P360 starts and runs fine, however at full throttle it spits and sputters like its running out of fuel. ️ scooter sprint racing. If one of those three things is absent or delivered at the improper ratio, your motorcycle will sputter when accelerating. After that i get hesitation. Billows a lot of white smoke. Mods weights, pulley, CDI, straight pipe. Theres two problems with that. When this sputter and die happens, does exhaust smoke increase? If yes, another sign it is too rich. It runs better now and the rectifier does sustain the battery voltage to 14. Disconnect the choke cable from the carb. I have a 96 Shadow ACE 1100. Most times a stutter at full or close to full throttle is a sign of the jetting being to rich. Jun 20, 2023 · Motorcycle sputtering or hesitating when you accelerate (high rpm)is due to an uneven supply of air/fuel mixture send to the combustion chamber or a worn spark plug’s weak spark. it sputters and bogs when it gets under load in gears. It starts and idles perfectly and just tooling around at cruising speeds it also runs great. I’ve got a 2004 Foreman Rubicon that sputters with the throttle a little above half through full throttle. These lines will be used to quickly find the exact throttle opening while jetting. it sputters up to 35 then it sputters hard and hits to about 42-43 ive cleaned the carb changed the fuel filter, and cleaned the fuel pump. Also it could happen the other to RICH, foam filter clogged not letting enough air in, but if to rich is would sputter and bog when given throttle. Use a plug gap tool to set the correct measurement on your plug gaps, according to your manufacturer. Vacuum Leaks: Leaks in the intake manifold or vacuum hoses can disrupt the air-to-fuel ratio, leading to poor acceleration performance. Still worked only at mid speed for a few weeks and then was hard to start yesterday. To be certain you have enough measure it next oil change and then mark the dip stick. Recently, it started acting up. I have my kicker set up with a 168/48/one clip down almost identical to yours. TL;DR: 1 day old Genuine Roughhouse 50 sputters and dies when throttled. I removed the air filter and found oil puddled in the bottom of the air filter housing. Filling the tank full is okay. If it Stumbles meaning it Sputters, Burps- It is RICH Alleyoop Nov 11, 2013 · I just had a kawasaki prairie 700 in that was doing the same thing. I put everything back together, all filters clean, new oil, clean plug, and fresh 91 octane fuel containing zero ethanol. Guest. Lean Bog – Occurs when the engine has too much air and not enough fuel. It seems to get less intense as the scooter warms up - after 10 minutes or so it gets better, but doesn't disappear. May 4, 2017 · 6. I do not have the vacuum line nor the choke hooked up because I bypassed the Scooter mechanic here. There is soot in my tail pipe tips also. I don't ever have cause to go WOT so I don't really know how that behaves. Thanks for letting me know, kind of strange that it didn't cause the check engine light to go on. #2. A clogged filter will limit the air that gets to the engine. As you mentioned, EFI automatically compensates by electronically monitoring the air-fuel mix. With my stock gy6 49cc scooter the maximum jet size I could upgrade it to is a 98. Dec 11, 2012 · New Taotao ATM50-A1 Bogs Down Under Throttle By jdlev (Read 29,783 times) Apr 27, 2024 · I am selling my 1986 Harley Davison 883 sportster. I can't figure it out. My 94 6. I have a post on the replacement pilot jet part number as well. #1 · Jul 13, 2023. Posted: Jun 2, 2020. Your lawn mower engine needs air to run. Mar 23, 2011: Oct 24, 2019 · I’ve noticed that when I use full throttle, especially in first or second gear, I accelerate fine until about 10k revs or so but then all of a sudden it sputters/bogs down. Hey all, got a practically brand new predator 212, all i did to it was removed the governor and put 18 pound valve springs in it and disconnected oil sensor. It runs great but recently, the engine will bog down when going up a long hill at full throttle. can someone please tell me how to fix this and whats wrong with it thanks. The damn thing only has 103 miles Dec 15, 2019 · Trx500fa sputter above half throttle. not sure if it is a heat issue. and your symptoms sound like it's overfuelling, so try the old jet. Sometimes it will slow down then catch the throttle and speed up again. Sep 1, 2008 · ktm 50 sputters. The e-choke or auto-enricher has the lead on the carb that needs to be connected to make it work, or it is faulty. It’s like it instantly jumps or skips to the rev limiter without going through the remaining RPM. I have cleaned carb completely numerous times. It would then run fine for anywhere from 15 seconds to Mar 19, 2007 · Check the plugs and wires also. The air filter is designed to filter out debris and other contaminants from entering the engine’s air intake. New spark plug, adjusted valves to intake/. I would be driving fine and then outta nowhere as I'm goin down the road it starts sputtering and slows way down. If you notice any erosion, replace the plug. Starts fine, 2007 Yamaha vino 125 sputters at full throttle. Oil fine. Jun 12, 2007 · Hey recently my rhino started sputtering at full throttle. It doesn't happen when idle, or otherwise when accelerating (except when accelerating from stop). The scooter seems to work fine in city roads, but if I need to travel on faster roads (45 or 55mph speed limit), after about 1-2 minutes at full throttle to get to the speed limit, I seem to lose all power. I've also noticed a drop of 2mpg and it won't get up and go as good as it used to. The bike runs and rides good, it will need a little bit of work. I removed the bowl and the main jet and sprayed carb cleaner all in the holes, also didn’t see any trash in the carb. I have a 2006 150cc gy6 Sunl scooter. But it still sputters at 50mph or so with high throttle with spurts of accelerated congestion Above 70mph - it Jun 10, 2015 · Sputtering at 3/4 to full throttle. Oct 3, 2006 · 27 kohler sputters at full throttle. Drain the carb and also drain some gas from the fuel line to remove any water and trash in the system. I run Valvoline Premium Blue and I recently used the grey bottle of Power Service additive too. Your Predator 212 will sputter at full throttle if your float level is high. In fact, the TFT screen flashes. It runs and rides really good. Bodily weathering is actually one more factor of comparison between scooter sputters at full throttle and a standard one; the former performs certainly not demand a lot effort to get to higher ranges than the last. It did help my fine tuning, but not sure that would be your main problem. 2000 E-Ton Beamer 49cc. Chances are the main jet on the new carb is larger than the stock main jet was. Vortex airbox and full Yosh system and the bike runs perfectly. Options. Sputtering can occur when the carburetor is flooded at full throttle by a high float level. Jul 28, 2020 · Jul 28, 2020. #1 · May 28, 2011. It has a #9 resistor in the pmd so it smokes black a little bit. . I can't figure this thing out! Jun 7, 2014 · sputters at full throttle. But as it stands, the first 1/3rd of the throttle is really boggy and stuttery. Jul 26, 2021 · 2002 Yamaha 1100 Vstar Classic: sputtering/ congestion with heavy throttle. Doesn’t matter what gear it’s in, R, N, low, d1 any of them. And its in any throttle position. The symptoms you describe are typical of a reduced fuel flow, any one or more of the following could be a cause, dirty filter, weakening fuel pump, restricted hose/fitting/pickup tube in tank, air sucking INTO the hose somewhere. The manual tells you to avoid running it at full throttle for more than (some) amount of time. It’s also the easiest to fix. 4 and when you give it wide open throttle it spits and sputters. There should be a screw or drain plug on the side or bottom of the carb float bowl. Briggs & Stratton 28u707 OHV engine stalls at high throttle. I cant figure out my sputtering problem I have at full throttle. It sputters at full throttle. It really slows down, not just an occasional miss. The problem sounds like condensation in the gas tank has made it to the carburetor. But what happens when your bike bogs down, hesitates, sputters, or loses power when you accelerate? May 7, 2024 · Discover why your motorcycle bogs down at full throttle and learn practical methods to fix engine bogging and poor acceleration. 006 and exhaust/. This does not happen when I’m not Jan 29, 2020 · After about a week of riding, noticed that when shifting into gears and trying to accelerate in 5,000+RPM range, beyond half throttle, the bike would bog down or sputter and would not accelerate unless I let off throttle (mid way) and slowly try to accelerate - sputtering the whole time - topping out at around 40-50 mph in 3rd-6th gears. I rebuilt the carb, new spark, fuel is flowing great, no air box leaks, mixture screw set right (as much as I could get the high Jul 13, 2023 · 3 posts · Joined 2023. The engine seems to go to idle, and the throttle doesn't do anything and no power goes to the wheels. Jun 4, 2020 · it cranks and idles and revs to half throttle great but once you open it up it starts to sputter and if you keep it open the bike will die. It wouldn't start until I got a new carb and re timed it. Mar 14, 2018 · Post by bvulic1 onMar 13, 2018 at 8:45pm. A cheap and EASY approach is to drain and clean your tank. May 25, 2023 · A motorcycle sputtering when accelerating is a common issue that many riders face. The GY6-150cc engine takes 750ml of oil. Next I did a carb cleaning to make sure Oct 17, 2008 · Motorcycles, Snowmobiles, Go-Carts, Motorized Bikes, ATVs, Electric Mobility Scooters and Golf Carts - 2 stroke scooter engine suddenly lacks power when going up a hill - I own a Yamaha BWS 50 scooter (2 stroke). i have read alot of threads about the exciters bogging and fouling. Set your idle 5-10% higher, then tune the a/f screw till you get a strong blip on the throttle. It will run as fast as I care to drive it, just not as quick. 5,617. 6 common problems that are responsible for a “car idles fine but sputters when accelerating,” including a faulty fuel system, faulty mass airflow sensor, worn spark plugs, a faulty throttle position sensor, faulty Dec 27, 2008 · 92 Exciter Bogs At Full Throttle. Electric scooters are becoming a popular mode of transportation due to their environmental friendliness and cost-effectiveness. Needs new tires, needs a carburetor rebuild. The fuel level in the carburetor bowl is controlled by the float level. Dec 9, 2022 · There is a point in your motorcycle's lifespan when sputtering affects the acceleration such that you cannot comfortably ride at high RPM. 008. hi guys im new to the site and i have been having problems with my scooter its an NST 49cc its the exact same as the rocketa, butt every time i am stopped and accelerate it sputters like its clogged or something but doesnt do it when im moving just when i am stopped and go, i put on another air filter Nov 28, 2006 · The sputtering on the '01 has been improved greatly with the Rad Valve (and far richer slow jet/needle setting compared to the VF3), but it's still there. hard to start and bogs down at full throttle. Once the engine warmed up, it would sputter a bit and run rough, occasionally slowing down almost to idle, cough for a few more seconds, and then run back up to full throttle (or whatever the throttle was set at). Mike RUCK12563. When I get past 1/3rd throttle the bike bursts into life and pulls well. 5 sputters under full throttle. From a dead stop putting the pedal 3/4 way down, runs to 7500-8000 RPM and 55+ MPH without cutting out at all. Lean Bog - Happens when there’s too much air and not enough fuel in the engine. Oct 8, 2011 · i got a 05 raptor 350. anyone got any ideas what it could be? it gots like 30 hours on it Apr 25, 2006 · Divide the spaces up even again until idle, 1/4, 1/2, 3/4, and full throttle positions are known. My 98 SH got a new paint job when pulling it out of storage this year (stored it last year like before using fuel stabilizer). 2. Pulled the air filter to get straight air in. open up your throttle on your handbars and disconnect the cable. Furthermore, if the float has a hole, it sinks and doesn’t regulate the You could try adjusting the air screw/ fuel screw (air screw is located aft, fuel screw fore) and also adjust the e-choke. My ruckus Boggs out and when I start picking up speed and around 30-35 that's when my ruckus gets to her old self and starts running but as soon as I slow down or come to a stop, it's hard to get her back up and running. Almost all scooter carbs have 2 jets in the carb. At WOT if the Bike Bogs, Back off the Throttle just a little about 1/4 throttle AND HOLD IT THERE and NOTICE what the bike does. any help would be much appreciated. stock 06 350 tm dies at full throttle, cranks up after it sits for a minute. Most newer carburetors have a valve that increases the fuel when you let off the throttle, to help prevent after fire pops. Turn the Fuel Ratio Screw Counter Clockwise 1/4 and wait 10-15 seconds to allow the engine to catch up with the new setting. Comes Feb 22, 2010 · Hello wise MVers! A few weeks ago my LX150 started making this shaking/sputtering sound/vibration shortly after starting from 0. Whichever carb is too far open has already used up some of its' idle progression fuel, when you open the May 22, 2007 · Technical Discussion - Sputter at full throttle - Ok, hope someone can point me in the right direction. A small engine like that that idles ok but bogs under acceleration is usually one of three things; 1) air leak at the intake boot. this machine has been driving my brother and i crazy for the last couple years! when you drive it it starts and idles perfectly but once you have it to 7/8 to full throttle the engine sputters and bogs ( like a rich condition) and sounds like Dec 14, 2013 · My truck is fully warmed up to operating temps and it will sputter at full throttle but then will go away. Reasons Your Lawn Mower Sputters But Runs. Sep 17, 2006 · Just unscrew the screws that hold the intake and head boot to the carb. Oct 18, 2023 · Stock jetting. So my initial thought was trash in the carb. I have already replaced plug, fuel and air filters, adjusted valves. At best, it will run at half throttle, but never at peak rpm. If im sitting at a light and take off hard it sputters just after clutch engages then pulls fine. Jan 1, 2008 · rancher sputters at full throttle. Basically, a carburetor is responsible for providing the right air and fuel mixture to provide the engine with enough power to run. If your scooter is used, then still check the needle, but take the carb out, unscrew the bottom of the carb, and clean the bowl. The primary culprit behind this sputtering when accelerating is usually a fuel system issue, but can also be related to the air filter, ignition system, or occasionally bad gas in your motorcycle. If i let off while it's doing it and get back on it sometimes it stops May 2, 2014 · Starts up and idles fine and just off idle is ok and i can role up to full throttle untill it gets warm. Jun 5, 2023 · Reason 1: High Float Level. If it’s bogging while using 1/2 to full throttle before the powerband, then the main jet is most likely the problem. It may be as Bill suggested the rev limiter. Test out your boat's operation at full throttle again. Any or all of these need to be checked out, found Carb overloading (flooding) when the throttle is reduced to decelerate is a sign of a main/high speed jet being too rich (allowing too much fuel in proportion to air). Same problem. Jul 22, 2020 · The first issue I encountered was with the engine completely stock. It smokes while it's doing it so I know its getting enough fuel. May 11, 2011 · Hey folks I need some help. Mar 18, 2015 · Ok, pretty much rules them out, that leaves fuel pressure. GOod job YES, to much air not enough fuel running LEAN that is why it needed a lot of throttle to keep it running. Put it back in, and the same symptoms. Providing the engine is in good nick and set properly, full throttle and high revs are beneficial. Pull the right side dust Cover (4 screws) off and unplug the wires going to the motor. If you put back on the stock carb, start with a 105-110 main jet and see what that gets you. I cleaned the carb this morning and now I see that the choke closes but the throttle Feb 17, 2016 · Now it will start up perfectly fine, but whenever it gets above 10mph the scooter sputters and shuts off. Sep 11, 2011 · Over 800 miles you need to check the valve gaps as well. The pops can also come from fresh air being drawn back into an open exhaust, disturbing the exhaust extraction and causing any unburned fuel to ignite; leaking Remove all your spark plugs with a ratchet and appropriately sized socket. I pulled the carb and cleaned (what I could) of it. Electrical Malfunctions: Issues with the Jul 21, 2022 · For 1/4-1/2 throttle openings when bogging before the powerband, the needle is the most likely culprit. 4 now. Sep 19, 2019 · It's amazing how restrictive the stock airbox is on these small engines. I bought a 93 vlx 600 about a month ago and it was running Oct 15, 2001 · Posted October 15, 2001. Sputtering at wife open throttle usually means your main jet is too large. Clean the air filter and warm the bike up. it will start up just fine and if you give it more than half throttle it will spit and sputter and backfire then just die. New to the forum, and hondas. Reverse the connection 180 degrees. Dec 24, 2020 · Adjust your a/f screw. Aug 17, 2010 · Check the airbox as well. There are two plastic tubes running from the gas tank to the carb (one clear/one tinted Nov 28, 2011 · I'm having a big problems with my engine, It all started when i changed intakes. An electric scooter throttle works by using a handlebar-mounted mechanism that controls the flow of electricity to the motor, allowing the rider to accelerate or decelerate. Mar 1, 2019 · It runs ok from 1/4 to 1/2 throttle , but from 1/2 to full throttle it got a bit better but still does the same thing. 5td sputters when I put the pedal to the floor and it has stalled twice while it's at full throttle. It took a little finessing of the idle screw to get Quick video on why some Honda or Yamaha scooter engines Boggs down or cuts off at full throttle. Obviously, if there’s enough contamination on the throttle, it can cause your car to sputter as soon as you turn the key and try to drive away. A squirt of starter fluid at the boot while running will tell you. It won't idle for more than 2-3 minutes without bogging down and trying to stall. As the day went on the bike was harder an harder 2 start but it started and when he was taking it back to trailler it started to sputter real bad and went blahhhhhh and died and wouldn't start Jun 10, 2015 · Jun 12, 2015. Seems like a fuel supply problem. I got a suzuki eiger 400 that's been sitting for awhile. It doesn't want to rev out at WOT, or even get there. so at full throttle, jet size is determining the amount of fuel getting into the cylinder. First soak it in carb cleaner see if it improves and then replace for about $15. When you would give it gas it would give fuel but wouldn't open the slide to give air. A lean bog is Jul 31, 2016 · After driving for about 5-10 minutes, my scooter will randomly start sputtering and eventually die. jw bu hn ws wd bu oe xj cy sp