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Spark advance

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Bikes: 1948 FL 74in Panhead Chopper , 1958 Zundapp Citation 500
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Spark advance


Post by 108 » Wed Mar 22, 2006 3:41 am

With a '66 FL automatic advance distributor , idleing at normal rpm, should the timeing be retarded and then start to advance as you rev it up - or should it be advanced at idle ? Thanks for any info.

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Re: Spark advance


Post by Billy » Wed Mar 22, 2006 5:07 am

AA=(Auto Advance)

Idling should have "timing retarded"

On AA=(Auto Advance) when you begin climbing in rpm's it starts 'advancing'...

Full Adv. should be at @ approx 2,000 rpm's. w/all
(in good working order)

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