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Primary belt to sheave clearance question for the clutching gurus.

sledr900

Well-known member
Lifetime Membership
Nov 21, 2007
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WSS, MT
I was wondering if your belt to sheave clearance is too tight in the primary if you could just adjust belt deflection on the secondary instead of having to re-shim the spider? If this would work what are the negative effects of this? (reduced performance, clutch heat, etc.)
 
D

dub

Well-known member
Mar 15, 2004
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Moxee WA
if it is too tight in the primary you need to adjust the primary! You cannot make up for it in the secondary.
 
S

shortstop20

Well-known member
Nov 26, 2007
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South Dakota
If you just loosen the belt up in the secondary to make the belt-sheave clearance more then you are effectively starting in a higher gear ratio and you will lose some holeshot power.
 

Norway

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Nov 29, 2007
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On a side note, does the p-85 come with any shims stock? Or would I have to machine it down if my stock clutch is still to wide?

Thanks

RS
 
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