apex clutch unknown

[Stubbs]

If you look in the tech section you will see Yammi used two different part #'s for the same 51-43 helix, depending on the year. For reference, the stock 51-43 helix measures out to, and acts more like a 48-42. The washers will prevent coil bind like Steiner said, and may net you a couple miles an hour extra in absolute perfect conditions.

 

[Blue_Blood]

Ok yes this is what I've been noticing thanks a lot for the info !

 

[HABS 1]

not worth just shimming helix, leave alone or put complete clutch kit in

 

[steiner]

Why not shim. Stops the coil bind letting the secondary work more efficiently. Can't hurt can it??

 

[HABS 1]

never herd or experienced a " coil bind" problem, shimming just looks and sounds like a cheap backyard way to gain probably nothing

 

[steiner]

never herd or experienced a " coil bind" problem, shimming just looks and sounds like a cheap backyard way to gain probably nothing

Well don't tell that to the guys that have built the fastest Yamaha in North America.
http://www.gforcedivision.com/#!ovdapex/cba1

 

[HABS 1]

ya coil bind on a cut primary were talking about the orignal post , everthing stock except washers behind helix , no good , especially when stud aint all the way throgh your lock nut when shimmed

 

[Blue_Blood]

Ya Def don't want my secondary blowing apart it's going back the way it should be !