Tuning time

[andrsn]

Recently got my chopper project on the road after 8months building. Now I gotta get it running right before I start putting real miles on it. I adjusted the valve clearances, tightened the cam chain, and went to adjust timing. When timing the ignition, the marks won't hold still. They flutter all over, at idle they'll stay within the marks, but i can't get the advance lines to meet up. Its a 79' with a pamco ignition. Is the fluttering of the timing marks indicative of anything? I wan't to get the timing set correctly before i start chaning jets around. Advice?

 

[retiredgentleman]

Try puting the timing light on the other high voltage lead.

 

[azman857]

Try flipping the sensor on the lead. It worked for me. With the Pamco it doesn't make a differance what spark lead you use.

 

[pamcopete]

andrsn,

And...adjust your timing chain, check for loose advance springs like this video: