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Old 08-12-2012, 03:42 PM   #2
sho305
Vegas modded 420
 
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Yamaha
 
Join Date: Jun 2009
Location: West MI
Posts: 15,433
Default Re: Tuning 94c ribbed clutch vtwin 18hp

I don't know the pucks and spring, but can tell you the pucks need to be balanced around the clutch far as weight. You need more weight in them or a weaker spring to make it shift faster. That is weaker spring not shorter, shorter will make it engage at lower rpm but not change shifting much.

Here is a chart I found, find parts to move you to lower rpm, but remember that is engagement rpm not necessarily shift rpm. Look at the second chart try to get a spring with lower tension to shift at lower rpm....or try to find a chart showing shift rpm. Maybe a pink spring?
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