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Author Topic: Timing Advance Question  (Read 1015 times)

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Huskyoff

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Timing Advance Question
« on: July 29, 2009, 05:11:14 PM »
At what point does the timing advance kick in? 2500+ RPM?

Thanks!
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Offline scondon

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Re: Timing Advance Question
« Reply #1 on: July 29, 2009, 05:21:35 PM »
I think it's at full advance around 3500rpm. It begins advancing around 1200-1400rpm. Long time since I timed my bike so #'s are an approximate guess.
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Huskyoff

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Re: Timing Advance Question
« Reply #2 on: July 29, 2009, 05:46:50 PM »
I wonder because, I still have issues with bog (at low rpm, like taking off from a stop) that go away like flicking a switch.... it just bogs then works itself over some kind of hump, then pulls hard. Based on that I wondered if the timing accelerator was sticking and causing this.
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Offline scondon

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Re: Timing Advance Question
« Reply #3 on: July 29, 2009, 06:47:07 PM »
I think a number of things can cause that bog. Having a low gear ratio(front & rear sprockets), plus a heavy rider can cause the bike to pull grudgingly from stoplights. Certain carb related issues. Overall ignition timing, etc...

If you want to rule out the advance mechanism, it's a simple matter. Scribe a mark on the ignition plate to mark its position, then remove it. The advance mechanism behind it should slide right out for easy cleaning and light lubrication.
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Give me..a frame to build a bike on, and my imagination will build upon that frame
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