Check wiring to injectors. Upgrades: frame-sliders, fend-elim, tcp seatcowl, pazzo levers, LED taillight w/int.turn signals, puig double bubble blue tint windscreen, K&N filter, Carbon Scorpion Exhaust, yamaha tankpad, flush turnsignals gotta 7 way party bong at the sheriff's dept. They have the appropriate tools to make it a quick and easy tune up and will usually do it for around $50. The clutch has been bled properly with 0 bubbles. Air filters need to be changed out routinely and people often forget to pay attention to them until it starts giving them problems. If it's dirty, it causes a lean condition off idle. Regular maintenance of your motorcycle will prevent it from misfiring. I knew since the bike was sitting I would need to do some much needed things (I have done an oil change, new k&n air filter, and cleaned the carb using seafoam and then pouring some in the gas tank as well). 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. Other thing could be a lean condition at such a low throttle opening. What is more impressive is their customer oriented service. There can be a big issue behind this minor problem. - Doesn't happen in 1st gear, only 2-6. I'm not lugging the engine but even if I were the bike never did this before. If you have more than one carburetor, its a good idea to change all the float bowl gaskets because theyre probably worn out too. Its a beast. Not really, the "choke" is actually a fuel enricher, which means it just dumps gas into the carb without any means of metering, it can & will foul the plugs, pull the plugs & see if the ceramic is black or tan in color, if black, they are fouled, and need to be replaced. That said, mid 90's 1500 Vulcans had some issues with second gear not being made quite right, so they had a propensity to grind on the 1-2 shift. He was on a week ago, I guess he feels stupid for being in the wrong gear, why else would you abandon your thread. For pit bikes with smaller cc displacement engines, in order for a cylinder to fire efficiently, three separate components must work together; the fuel delivery system (carburetor), the ignition coil and wires and the spark plug. 6 Reasons Why Your Motorcycle Accelerates By Itself. What Would Be a Good Motorcycle Seat Height for a 53 Rider? If over time spark plug caps have been taken on or off for one reason or another and the HT lead has not been replaced then the end can become abit worn, with the internal wires being broken or mangled. I had my summer staggered rims on, now have the standard 18in winter tires. This is best diagnosed through a mechanic if you suspect this is what is causing the sputtering problem. How often should we lubricate Harley Davidson chain? JavaScript is disabled. If it helps then you need to richen the mix by raising the needle, or a larger jet. link to 6 Reasons Why Your Motorcycle Accelerates By Itself. Like the others said, check primary tension. Options. both mine n pal had change the TPS during the recall. And don't let the dealer do it. Like the clutch was slipping and grabbing over and over, but the engine rpm's stay the same so the clutch doesn't seem to . Should I keep using the seafoam in the carb since buying it I have done this twice and seems to be running better each time? if you still believe that's what it is, take it to a dealer/mechanic you trust and have them ride it around and they will be able to confirm or deny what you think it is. Aug 28, 2010. It is possible for the ignition coil to not send enough spark to the spark plugs which will again cause misfires within the engine. if OK it can be tuned to correct. A forum community dedicated to all sport bike owners and enthusiasts. I get on her and start going through the gears (revving the RPM's) and once it gets in 4th or 5th gearit will start sputtering and cutting out (sometimes it will completely die). However, while in 5th gear trying to increase speed, It seems to start sputtering? The carb is starving for fuel. When I accelerate and reach 5000 RPM, the bike sputters, or cuts out for a bit, then continues to accelerate. Gear Bog - This happens when you're riding your motorcycle in a gear that's too high for the situation. Everything From Old School Harleys To The Latest BMWs. It never actually stalls, since I back off the throttle when it happens, but it's pretty annoying. I'll keep this updated as I go forward. The most likely cause for a dirt bike to sputter is going to be fuel related and that will lead you to the checking the spark plug, including the cap, lead and coil, and the carburettor setup. Additionally, strictlymotorcycles.com participates in various other affiliate programs, and we sometimes get a commission through purchases made through our links. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Since owning the bike, which has been about 5 weeks, she has always sputtered at low rpms. Using a multimeter again, test the coil for resistance. Hi folks. I believe it's standard but I don't accept that it's right. Starts fine. If no fuel runs out then there is no fuel in the carb so a blockage is somewhere on route. One common issue I often ran into was sputtering problems. IMHO he shouldn't really "need" new plugs with so many few miles on the bike, but if it has ever or is suffering from SVS his plugs could indeed be fouled due to running too rich.common problem with the '04 and '05. I guess soaking the plates for a good few hours is your next move. Fuel Component Problems. 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