2004 Yamaha YZ 125 "possible missfire" Questions

...it sitting around all winter? Try cleaning the carbs- usually means replacing o-rings and gaskets, possible even jets if really

...wet .usually garaged but left in rain overnight next day ran terrible ok later when dried out its possible theht leads or plug caps are tracking and your loosing the spark causing slight missfiring ...

get in black box relay I have a missfire possibly a loose connection, or bad ignition component. sometimes they are hard to diagnose without actually listening to the problem. popping at high RPM ...

...is a thick deposit blck oil, and it missfires oil problem with either rings or valve stem seals possible to get the hottest plug made and use it to burn the oil off the plug electrode (short

HI , Iam thinking of buying a 2001 GZ250 with only 1500kl on the clock. This meens the bike has sat around most of the time not being used. When I test drove the bike it had a missfire.? Would this be

...coil and plug wires with an ohm meter to see if they are within factory specs. Also, check for a possible vacuum leak around the carb & cylinder head on the cylinder that is missfiring. You

ive got a 650 xvs it started to missfire about 50-75 miles ago now its so bad i cant ride it (slowly got worse, i think it could be a carb diaphram ? i had to put it on res fuel for a short while, but

missfire on my xv535 miss fires when engine gets hot THIS IS A FUEL PROBLEM IF IT RUNS OK WHEN COLD IF THE BIKE DOES THIS AT START UP IT WILL BE THE TIMING IS OUT Check your plugs and see what color ...

2004 Triumph Thunderbird Sport. Bike will not take more than 1/3 throttle when it stumbles like it's missfiring. If I close the throttle slightly it accelerates away. It does this at all speeds in

...out, now it idles but does seem to hunt slightly at 1200 rpm but has stopped cutting out.Is it possible I still have an electrical issue or because of the misfire do yo recommend fitting new ...