- Joined
- Aug 20, 2005
- Messages
- 116
Does anyone haver any ideas, I am struggling. I have 850 Commando with single Mikuni for the last 10 years. This worked fine all that time till head gasket went recently. I did that plus exhaust guides & valves, took off barrel & added 30 thou compression plate to give motor an easier time. Bores rings & all else as new.
Bike now runs great in all but the very lowest throttle settings & appears to be very rich on idle & eighth throttle, smoking, misfiring. fouling plugs. Smoke appears to be petrol not oil. Left cylinder much worse than right. Have tried plugs transposing ignition parts to eliminate these before looking at carb. Dont forget I have not touched carb. Tried smaller pilot jet & throttle slide lower needle position all making no difference. Wierdest thing is that idle becomes better when air screw is all the way in which surely makes mixture richer!
Have stripped carb checked & blown through all airways & can see nothing wrong
Pulling hair out now!
Any ideas anybody?? HELP!!!!!
Bike now runs great in all but the very lowest throttle settings & appears to be very rich on idle & eighth throttle, smoking, misfiring. fouling plugs. Smoke appears to be petrol not oil. Left cylinder much worse than right. Have tried plugs transposing ignition parts to eliminate these before looking at carb. Dont forget I have not touched carb. Tried smaller pilot jet & throttle slide lower needle position all making no difference. Wierdest thing is that idle becomes better when air screw is all the way in which surely makes mixture richer!
Have stripped carb checked & blown through all airways & can see nothing wrong
Pulling hair out now!
Any ideas anybody?? HELP!!!!!