mtnmulisha340
12-28-2008, 11:50 AM
Hi i was wondering if anyone can point me in the right direction. i have a 96 trx 300 ex, bored to a 340. for some reason when i hit half throttle the quad instantly bogs low, also a rough start follows.
knowing small engines i tore of the tank and carb and cleaned both and restored all the gaskets and parts inside the carb. after that i tried starting again, rough start, runs fine and about 10 min into a ride the problem arises again. I checked for spark and i'm getting no spark sometimes then it sparks. I turn the kill switch from off-on-off back and forth. both off's receive strong spark and on throws a weak one. But the quad will not start in the off positions. has anyone been through this phantom problem? I have reworked the carb about 3 times now, changed plugs, wire and i believe it would be called the coil. could it be computer controls? any information would be much grateful. I love this quad, its fast and other than the cutting out, runs perfect.
~~1996 trx 300 ex: 340 cc, power four fmf, maier plastics, ams grip seat, renthals, K&N, larger cam~~
knowing small engines i tore of the tank and carb and cleaned both and restored all the gaskets and parts inside the carb. after that i tried starting again, rough start, runs fine and about 10 min into a ride the problem arises again. I checked for spark and i'm getting no spark sometimes then it sparks. I turn the kill switch from off-on-off back and forth. both off's receive strong spark and on throws a weak one. But the quad will not start in the off positions. has anyone been through this phantom problem? I have reworked the carb about 3 times now, changed plugs, wire and i believe it would be called the coil. could it be computer controls? any information would be much grateful. I love this quad, its fast and other than the cutting out, runs perfect.
~~1996 trx 300 ex: 340 cc, power four fmf, maier plastics, ams grip seat, renthals, K&N, larger cam~~