Because of the variations in flywheels and stator pickups the only way to check your ignition timing is with a strobe timing light. You must confirm TDC and mark it on the magneto housing (to match your flywheel mark) and then use a degree wheel to mark on the mag housing where you want your timing to be. These days that tends to be around 17 dgrees before TDC rather than the old 21/23 degrees.Noplastic wrote: hmm good to know, one less problem to check. but there's something wrong...i just can't understand what...today i'll try to put the timing as it was before around 21, if the problem is the timing i should notice some difference at least. i'll also check the carb again. what are the symptoms when the choke doesnt come back to the off position completely?
You can then start your engine and check with the timing light where your ignition fires and if it's relatively stable.
Hope this helps