Spark control 42WLA
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Tourer
Joined: May 2008
Posts: 442
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From: High Desert of So Cal
Spark control 42WLA
I have a reprint of an old War Dept Tech Manual and according to this manual I am to fully advance the timing when starting. It doesn't mention where I should set it after it's started. Should I just leave it in the full advance position or retard it some?
Road Master
Joined: Jun 2008
Posts: 1,078
Likes: 39
From: NW Florida
Looking at operators manuals for several years and models they all say set the spark at full or near full advance when starting. The normal position after the motor starts is full advance. They say you may retard slightly when the motor is under load to prevent knocking. Some bikes start easier when the spark is retarded slightly. I would keep it at full advance while running.
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