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Old 09-30-2009, 07:34 PM
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Kevlarr Kevlarr is offline
Motorized Bicycle Elite Member
Join Date: Jul 2009
Location: Mi
Posts: 1,628
Default Re: Super Simple Tacho

Problem is the engine is already geared down so the sprocket is not the same as the engine's RPM. Crankshaft = little gear and clutch = big gear.
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