Fixing loud clutch

[JestersYamacat]

Good day fellow sledheads!

Just picked up my new Sidewinder and was shocked by how loud the clutch is. The pins(clutch weights), and Roller pins are exceptionally loose and rattle like crazy making for a loud clutch. Forgive me if this is nothing new and a yamaha staple but is it necessary for a durable clutch to be this loud? I was thinking of placing some small o-rings behind either side of the pin bolts to just make them tight enough not to chatter or cause any friction. Is anyone else seeing this or is mine just this way? Cheers

Jester

 

[AXR]

I know it has been said about the noisy clutch and what not in other posts. But mostly what I saw was people complaining about it while riding and not while idling.

Strangely I was just out in the trailer giving the sleds a once over as all the snow is gone and I wanted to see if my Dad's heat shield on the gas tank was now in need of replacement as mine was a cpl weeks ago at the first service. Anyways long story short.. I also took a look at the clutch to see how the spring looked (I will get to that in the other thread). We have always had the annoying rattle at idle and I grabbed the primary roller bolts and sure enough they move about 1mill and rattle. I was just going to ask if anyone knew if they could be tightened more or what when I saw this thread. I did not try to tighten them. So if not O rings, would it hurt anything to add a washer or 2 to take up the slop? I don't want to bind anything up.

 

[**sj**]

the pins are only part of the issue...o rings or better yet poly washers will only partially solve the rattle....the rest comes from doing the crank stub mod....where you remove the stub...green locktite to the stub and re-install (over simplifying) to remove the slop between the splines...

an apex doesnt do this because it has the gear reduction unit to remove the motors "pulses"

 

[jonlafon1]

This has been on my mind also.. My summer project at least for clutch weight pins .. I can not for the life of me figure out why Yamaha wouldn't just tap a small dimple(2 of them) on the tube that the weight shifts on. Then the set screws(2 of them) could be aligned and settle into that dimple and no way they move. They do not move now just snugged up against the inner rod. Why not just eliminate the bolt and nut all together and drop some rotating mass off the clutch.. Seems like a easy enough job for the summer.. The rollers are the same but no set screws.. WHY? tap a hole in and Allen set screw with blue lock tight eliminates the bolt and nut and MORE rotating mass off the clutch yet again.. Maybe its more involved then what my pea brain is capably of but, SOMEONE that makes a lot of money for Yamaha cant figure this stuff out??

 

[AXR]

I really don't notice the rattle while riding. Only when idling or on off trailer. The sound those bolts make when I slide them back and forth by hand really does sound like it's what I hear at idle. I saw Don posted they had one where they wore way into the housing from rattling around. Would they bind up the roller if I were to add some metal washers between the bolt head and housing and between the housing and nut? I have never messed with clutches other then belt deflection washers on the back of the old secondaries.

 

[JestersYamacat]

Cat places rubber o-rings in theirs a they are quiet at least for a short time until other parts start to rattle and then you know something is in need of rebuilding. I am gonna try some teflon 0rings as well as hardened rubber and see what i can come up with. Cheers

Jester

 

[**sj**]

Ive added the poly washers to it...quieter...but not significantly...since the main source IS NOT the pins

 

[Dieselxtx]

I'll be loctiteing the splined stub shaft in the off season. That's the only true fix.

 

[JestersYamacat]

If yoiu get the chance and do loctite the stub shaft, please take a few photos of what you did it would be really helpful. Thanks

Jester

 

[AXR]

washers should at least keep it from chewing into the spider

 

[x600c]

I try not to let my sled idle too long. It's embarrassing. The clutch makes more noise then the exhaust!

 

[RJH]

You can't feel it with so much HP but that moving is costing HP to the track.

 

[PowderFalcon]

Sad that we are left having to deal with this, but surely there are enough smart fellas on this site that we can come up with a solution!

 

[Joe ltx-le]

I'll be loctiteing the splined stub shaft in the off season. That's the only true fix.

Have you had experience with the green loctite?

I don't think you could ever get it apart again

 

[fatchance]

Green Loctite is low strength grade. Wicking property is it's attribute. I will absolutely be doing this after the season.