OK here's my saga:
I installed a new Dynatek electronic ignition on my CB500T using a detailed PDF that is floating around. The bike ran great at first, both cylinders were strong. I put about 15 miles on it then it started hesitating badly off idle. I played around with the carb sync but the problem just got worse until the left cylinder went totally dead.
The timing on that cylinder is showing a severe amount of delay with the spark. While looking at it with a timing light it looks to be 45-50 degrees retarded, with an occasional blip at the correct mark. I tried swapping coils and plugs with no effect. While playing with the ignition timing plate the problem somehow migrated to the left cylinder, I cannot get it to go back no matter what I do. The advance weights are moving freely but not too loose.
Does anyone have any clue as to what's happening? The static timing of the bike looks fine, it only goes retarded when the engine is running.
Because it has happened with both carbs, coils, and spark plugs I think it has to be related to the ignition timing. I tried bypassing the kill switch also with no effect.
I installed a new Dynatek electronic ignition on my CB500T using a detailed PDF that is floating around. The bike ran great at first, both cylinders were strong. I put about 15 miles on it then it started hesitating badly off idle. I played around with the carb sync but the problem just got worse until the left cylinder went totally dead.
The timing on that cylinder is showing a severe amount of delay with the spark. While looking at it with a timing light it looks to be 45-50 degrees retarded, with an occasional blip at the correct mark. I tried swapping coils and plugs with no effect. While playing with the ignition timing plate the problem somehow migrated to the left cylinder, I cannot get it to go back no matter what I do. The advance weights are moving freely but not too loose.
Does anyone have any clue as to what's happening? The static timing of the bike looks fine, it only goes retarded when the engine is running.
Because it has happened with both carbs, coils, and spark plugs I think it has to be related to the ignition timing. I tried bypassing the kill switch also with no effect.