Need help on belt deflection

catweasel · Mar 9, 2012

Ordered a stage 2 torsional clutch kit from BMP and installed. That is a story for another day, but lets say I am not impressed with BMP or the kit.

Anyway, I can't get my belt deflection right. It is sitting about 1/8 of an inch below the secondary. Added shims, took shims off, took all shims off, still the same place. Any advice?

Also, the secondary is getting hotter than the primary. I take it this is due to deflection?

RACINSTATION · Mar 9, 2012

How many shims do you have behind the adjuster block?

One thing to keep in mind, the M1100 belt does not ride like an M series. The M8/M1000 you can adjust it until just the ribs on the belt are above the sheave and you are good. On the M1100 it seems like the belt is about even with the sheave. The four stroke won't usually chirp either, it will idle down when deflection is too tight.......and if it is real tight she will just walk away from you.

catweasel · Mar 9, 2012

Stock it had 1 med shim. With a medium and a large, it idled up to 2800. Back to the medium, rpm's were 2000.

While I am not a fan of the BMP kit, it did pull harder than I have ever felt before. Lifted the front end 4 inches off the ground on flat ground.

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Need help on belt deflection

catweasel

Well-known member

RACINSTATION

Well-known member

catweasel

Well-known member

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