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Point gap variance
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Another thing to check is the breaker arm pivot bushing. This 1919 I'm working on ran like dookie until I made a new bushing.
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Originally posted by Rubone View PostIf you are actually riding your bike as it was meant to be operated you will be using the advance grip alongside the throttle for best performance. Steep inclines, long grades, slow traffic, all benefit from use of both controls. Fix yours.
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Was thinking along that line. Checked the dist housing and that has wear. Looks like it could be brazed and it’s easy to chuck up in the lathe. Thanks for the input
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If you are actually riding your bike as it was meant to be operated you will be using the advance grip alongside the throttle for best performance. Steep inclines, long grades, slow traffic, all benefit from use of both controls. Fix yours.
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from full retard, to start i advance i turn the grip about 1/3 towards advance.
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I had this exact problem. I was able to open up the points plate and made a bushing to press/loctite in. I retard my timing frequently.
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Mike, if you have gone to the trouble of rebuilding the engine, i would suggest you go the extra mile and rebuild the generator/distributor/timer.
What year are you rebuilding?
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My 25 JD always likes to be retarded a little when I start it. Some people don't do it - luckily they do not seem to kick back as hard as a panhead.
Jerry
Originally posted by Mike Dix View PostI’ve set my points on my JD to .022 in the advanced position when I retard the distributor the gap goes out to .035. I realized the breaker plate has some wear at the pivot point on the dist body and that’s where the variance comes from. I’ve been told by another JD owner that he leaves his dist in the advance position all the time and it doesn’t matter. I know if I don’t retard the spark on my 48 Pan I’m likely to have a broken leg. Should I have any concerns about this on the JD ? I haven’t started the newly rebuilt engine yet but I’m getting close.
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Point gap variance
I’ve set my points on my JD to .022 in the advanced position when I retard the distributor the gap goes out to .035. I realized the breaker plate has some wear at the pivot point on the dist body and that’s where the variance comes from. I’ve been told by another JD owner that he leaves his dist in the advance position all the time and it doesn’t matter. I know if I don’t retard the spark on my 48 Pan I’m likely to have a broken leg. Should I have any concerns about this on the JD ? I haven’t started the newly rebuilt engine yet but I’m getting close.Tags: None
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