PDA

View Full Version : YTM200k Timing issue?



ALL_NYTRO
04-20-2010, 04:28 PM
I'm getting this old bike going again and have entirely gone over the whole thing using the service manual that you guys helped me get :)

But. My problem is that the machine idle's great, rev's smooth until about 50% throttle with a load on it. Then it sputters and backfires a bit. I've set the valves, chain tension, completely cleaned the carb (and set it to factory spec), replaced the ign coil because the secondary resistance was too high. Everything that I've done so far has really helped this bike run better, but I still can't seem to solve this obstacle.

Oh and the timing is right on spec until I reach about 3000 RPM. Then it advances well past 40 degrees... is there any way to adjust this??

I'm real excited to ride this thing, and I"m getting real close....help!