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Hi guys I’m having trouble with belts I’m currently using a Gforce c12 belt dimensions 1 7/16" x 46 3/4". But after changing to a 140/330 spring in my primary today the belt became way too tight. Seen that ultimax offers a belt that is 1 13/32in. x 51 25/32in which is also recommended for use on my snowmobile by fortnine. Do you think by going with the bigger belt will solve the issue?


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The spring in the primary is not effecting belt length. I would look to see if something went sideways and the primary isn’t opening all the way. Or the deflection is set wrong on secondary
 

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The correct belt is a Polaris 3211115 which is 1.437 x 46.77" long.

Besides what was mentioned, you may have at least one clutch weight jammed in the clutch.
This prevents full opening of the sheaves. Belt must rest in the very bottom of the clutch at idle. Some Gates belts are at least .020" wider than a Polaris belt and can drag if spider isn't properly shimmed.
 
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