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Aftermarket clutch weight testing from this weekend

stevewithOCD said:
Does the machining fix problems on stock clutching? Does some of the aftermarket clutching fix issues alone or is it recommended to machine clutch even with those set ups?
Click to expand...

I can only speak for the Thunder products kit. But can tell you the stock secondary binds the spring. Give us a little time. We are looking at different solutions and need to test.


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stevewithOCD said:
Does the machining fix problems on stock clutching? Does some of the aftermarket clutching fix issues alone or is it recommended to machine clutch even with those set ups?
Click to expand...
If guys are NOT having issues with secondary leave it alone.. Some sleds may not need secondary machined.. If your blowing belts and have a lot of dust and HOT secondary. This machining will help.. I will report ASAP what I find . Leaving Thursday for the UP . Should get some miles in.. Also I have a fresh belt to run after I clean all the dust out _ fresh start to see differences so to speak.
The only difference on set up is NEW belt( 8dn )and secondary machined, and offset checked and rechecked. I had a ton of belt dust on last 300 miles with new 8dn.
 
That's what gets me. How do we explain the variability with the clutches? The Proto's ran over 120 some guys here are getting over 120 and then others are having coil bind roller problems and blowing belts.
 
inconsistent manufacturing of the HELIX and spring(secondary in general maybe?). Hell the factory rollers might have made it and been okay IF ALL three were touching helix. And some are doing okay with them
This is almost to a T what happened in 2012 with the Cat 2 roller secondary. Only difference is the Cat was a compression secondary/ Yamaha is a torsional with three rollers instead of 2 that cat had. My 2 cents anyway
 
jonlafon1 said:
inconsistent manufacturing of the HELIX and spring(secondary in general maybe?). Hell the factory rollers might have made it and been okay IF ALL three were touching helix. And some are doing okay with them
This is almost to a T what happened in 2012 with the Cat 2 roller secondary. Only difference is the Cat was a compression secondary/ Yamaha is a torsional with three rollers instead of 2 that cat had. My 2 cents anyway
Click to expand...
The other issue that I forgot to mention that I have seen - more cat side of things .. Is the Primary spring binding also. Guys would machine the pocket a touch wider on the cat clutch. Not Deeper in the pocket but actually slightly wider diameter in Primary spring pocket. Not saying this is happening BUT this is a somewhat new Yamaha primary and maybe just something to spot check(primary spring wear)
 
RDAY said:
Is it possible to adjust weights or arms anyway with out removing primary bolt cover spring etc?
Click to expand...

No. but I can save you one step. Primary bolt doesn't need to be removed, just cover. Who's tune are you running.


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jonlafon1 said:
inconsistent manufacturing of the HELIX and spring(secondary in general maybe?). Hell the factory rollers might have made it and been okay IF ALL three were touching helix. And some are doing okay with them
This is almost to a T what happened in 2012 with the Cat 2 roller secondary. Only difference is the Cat was a compression secondary/ Yamaha is a torsional with three rollers instead of 2 that cat had. My 2 cents anyway
Click to expand...
Ya,but my cat had so many more problems than there secondary pos,the whole set up of the TCL was a joke,EVO hit the nail on the head when they started to develop there delete kit for the TCL POS...lol
 
The clutch kit on a SW with 200kms is not match for one with 1500kms on it.
My buddy's sled is completely stock but I guess broken in, he caught and pulled by me.
Loose trails only 100mph or so
 
Interesting. Does anyone know when the break in mode is over on a Sidewinder, or Cat ?
Is it calculated by engine hours, or miles driven ?
 
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