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Old 07-21-2008, 03:35 PM   #9 (permalink)
iclick
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Quote:
Originally Posted by Krayven Sumhead View Post
The MoFuCo sells a 'belt tension tool' that's guaranteed to set the belt tension waaaaaay tooooo tight. The MoFuCo hasn't quite figured out that the belts tighten on the sprockets as it heats up.
Feel the tension before you ride, ride it 1/2 hr and check the tension again.
I just loosen it until it stops howling and set the tension when it's warmed up.
Or find a cold tension that settles where you want it when hot. I did some tests on this and found that mine tightens up considerably even when simply parked in the sun. Here are some examples using the HD 10# gauge:

Adj. cold to 9/16"
Outside (85°) after wash, no run: 3/8"
After short ride: 5/16"
Next day, cold: 7/16"

Since I consider 5/16" plenty tight enough, I'm now setting at 9/16" cold. If I used the Moco's specs for an SG (1/4 - 5/16" cold), the belt would be tight as a banjo string after a short ride. This can't be good for the belt or bearings.

I used the old 45°-twist method on my old RK and after 12 years and >115k miles the original belt is still on the bike.
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