1980 KZ550c.
If any of you had been reading
my other post
about getting this bike back on the road on the carbs board, you know the basic history, but rather than kee that post going, I thought I would start a new one just on this particular issue.
I can't seem to get the bike to run consistantly on cylder #1. I origanlly had issues with #'s 1 and 4 and thought they were related, but as it turs out theye were different issues. Here are the basics:
The carb is clean. All air, idle, and main lines are as clean as they can be. Stock jetting with the needle currently set at 1.5 turns out. For most of my testing and fixing, the air filters has been off, but even with them on, the problem remains. If I hold my hand over the back of the carb, the jug will catch and run for a second, then die off. Adjusting the needle all the way in or all the way out makes no difference.
The engine: I have good compression according to my manual, but it is about 15 psi lower that the other three cylnders. Timing is set spot on acording to a timing light. Valves are set to within spec (although exhuast is a little tight, but not tight enough to make me worry just yet).
I have great spark. In a dimmly light garage, I can hold the plug on one of the head bolts and see a briliant blue flash jumping around on the electrode.
For some reason, I just can't seem to get the fuel into the cylnder to meet the spark. Any suggestions?
Post edited by: KB02, at: 2006/10/29 09:00