Rocho clutch info

[lou]

Hi all

I have 5 plate rocho clutch (aprilla type) which i used to use in a TS ..but It used to slip at upper end of speed , Im now currently doing a RB250 question is could this clutch be sorted to use in 250 or would it not be up to the job for a RB .

I seam to have clearance with clutch compresor pressed down , bit stuck on how to check if all is ok ? All plates are good flat i have roughed then up a litte ,anyone else still using Rocho Clutch .

[Wack]

I've had a few of the Rocho clutches (Yamaha ones) and all needed a few mods to make them work.Initially they were fine but after a while I found they slipped and dragged mainly because the stainless steels warped so I machined some standard steels down to fit.That cured the warping but they still slipped so I changed to EBC plates and been good since in 30 hp motors.I think Lee did a real good job on the machining etc though and I found that by using a billet deep spider,skimmed out crownwheel and a stepped top plate more plates can be added without the need for a casing packer.

[lou]

i have had the yamaha clutch he done found apprilla bit better ,had it a while took it out as slipped a far bit .thinking to save a few quid if can make it work in the RB.

The steels seem fine one was wraped a little but Lee did send me spares , just cant see why it wont work ,could try different plates ,ill have a look at EBC which ones as theres a few different sorts

cheers

[lou]

Still slips high revs which is a shame , not sure what else I can do to cure it , new plates maybe, but these aprilla plates not done many miles what’s so ever .