Nev's Lock Up Clutch

I have to plead ignorance here because for the life of me I can't remember what the shims are in there for or what they accomplish. I put this together like two months ago and currently it is still together so I can't scope it out...

So, what are the shims for ? :D
 
WELL GUYS we are using heavy springs with no problems at all . we dont like to use lock ups on the street
I think I'm starting to come to that conclusion. This may have not been my best purchase...

My second theory is going to throw a wrench into all of this....
 
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I have to plead ignorance here because for the life of me I can't remember what the shims are in there for or what they accomplish. I put this together like two months ago and currently it is still together so I can't scope it out...

So, what are the shims for ? :D


No idea... my "red model" lock-up clutch has no shims. The ball bearings travel freely in the ramps at all times. The ball bearings do not force themselves between the 2 plates! The lock-up clutch functions solely by centrifugal force exerted by the ball bearings in the ramps. When I turn my engine by hand (not running) I can hear the ball bearings dropping back and forth. IMO, you should try a 10W40 full synthetic oil to make ball bearing drop faster... that's what I use.
 
Geeze Walt :D..... Those shims must be there for a reason (on my gold clutch). If I had to guess I would say that they space the pressure plate assembly away from the clutch plate(s) pack? Maybe someone else knows or eventually I'll find out when I tear this down...
 
Maybe they are there to make up the difference in clutch throw on the new clutch remember you remove items in the old style including the anti judder stuff! only Murry or Nev could answer that. I am just guessing.
 
Perhaps the "gold" clutch plate was made thinner than the "red", and the shims are used to maintain deck height.

BTW, just as the acceleration vector of the rotating mass forces the ball bearing to move outward in the ramps, it is the de-acceleration vector of that mass that forces them to move inwards. So closing throttle slightly "unlocks" the clutch.
 
Walt...

It's like the word ***c. It's spelled wrong but your mind spells it correctly. Practicle is practical in your mind no matter how it's spelled.

My only problem with Nev's clutch or the Rekluse for that matter is it renders the bike unstartable if the battery is too flat to turn the starter. With a normal clutch, even if the battery can't turn over the engine, you can still bump start the bike so long as the voltage is over the minimum threshold for the ECU, I believe 11 volts. Not so with a lockup clutch and kickstarters went the way of breaker point ignition.
 
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