Nytro secondary clutch sheave adjuster bolts shims??

[terez]

I want to adjust the belt height in my secondary using the bolt shims??

Are these shims properietary Yamaha or if not what is a common size/thickness??
I assume they need to be a consistent tolerance for thickness to keep the secondary true?

Will tractor shop washers do or do I need precise tolerance washers?
Any idea how many for how much belt height increase?

The sled is new this yr and now has 1500 miles...the belt was flush with the sheaves when new and is now a couple mm below the sheaves when letting the secondary roll freely to a stop.

Thanks

 

[terez]

shims

They are avail from Yamaha. .5mm and 1mm thickness.
Freakin $3 ea.

I bought a set of both sizes so i can play till I get what I want.