6000 miles clutch questions

picasso

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Holland, Michigan
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Snowmobile
SR Viper R-TX DX
its snow time! With the cold weather I decided to take both sleds to the dealer. I do my own maintenance, oil changes, track maintenance, most everything. But clutches are not my thing! With that being said, here is my problem.
They are telling me that the bushings, slides, buttons should be replaced. Have some flat spots starting. A rebuild for both sleds. Parts are around 600 bucks. 2.5 hrs labor. Kinda hurts! But expected.
Now the part I’m not too sure about. They say primary and secondary sheaves have excessive grooves on them. I had them show me. The grooves are maybe 1/16 of an inch deep. The edges are not something I can catch with a finger nail. The grooves are smooth. On the primary, they are about where the belt would be when idling. Secondary would be half way to the top.

Now, I am not having any issues blowing belts. I believe they are working quite satisfactory. In fact I’ve only replaced the belts once on both sleds. At around 4000 miles.

I’m thinking leave the sheaves alone and just replace the wearable parts.
Your thoughts and advice are wanted.

Thanks, Picasso
 
Grooves in the primary where the belt engages is common and not a issue as long as there are no cracks. If you have flat spots on the rollers or arms, they need to be replaced or it won’t shift properly. I can’t say that I ever seen grooves in the secondary.
 
Grooves in the primary where the belt engages is common and not a issue as long as there are no cracks. If you have flat spots on the rollers or arms, they need to be replaced or it won’t shift properly. I can’t say that I ever seen grooves in the secondary.[/QUOTE
 
Here is what I am going to have done. I think I’ll leave the sheaves alone. The secondary grooves are very slight. The sad fact is I really had no complaints about how the clutch was performing when I brought the sleds in. I brought them in more because we have 6000 miles on them and wanted them inspected before the season. Still can’t believe how expensive all these little trinkets cost and how many wearable replaceable parts there are.
 

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FrozenTows4,

Maybe I missed some thing but I don’t think Picasso has an AC, he has a viper, so the cat secondary wouldn’t fit his vipers, the splines are different on the secondary’s between the AC and the Yamaha. An aftermarket option would be getting PB80 primary clutches. I bought a used one to try on my AC 7000 this year. I also run a Team secondary on my sled. I’ve heard some on TY say the AC clutches are better than the Yamaha clutches, but I disagree. I’m not a fan of the Cat clutches, they wear out very fast.

Another option is to call Thunder Products and buy a clutch kit for both your sleds along with the new rollers and slides you need. TP will hook you up and their parts are superior to the new OEM parts. If you’re going to spend decent money you might as well get an upgrade at the same time. If I can get a higher quality aftermarket replacement part for a worn out oem part, I’m all about that. Check out / call Thunder Products. They know their stuff.
 
There is sn alternate rebuild kit. At the dealer listening to an explanation. Crooks
 

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I’d call Thunder products before you fully commit to Yamaha oem stuff.
 
Here is what I am going to have done. I think I’ll leave the sheaves alone. The secondary grooves are very slight. The sad fact is I really had no complaints about how the clutch was performing when I brought the sleds in. I brought them in more because we have 6000 miles on them and wanted them inspected before the season. Still can’t believe how expensive all these little trinkets cost and how many wearable replaceable parts there are.
Without seeing your parts first hand it is hard to tell. However, I doubt that the main bushings are needed. But I can be sure that the slides are needed, at least the one that has the 0-ring behind it. The 0-ring is not on the list but should be and given that there will be some wear in the sheave where the slides run, spider shims could probably be added. It is possible that the rollers and weights may be needed, so don't be too quick to villify the dealer.
 
I know it needs weights and rollers. I see the flat spots. The part that makes me angry is first the Bill was 1600 dollars. Parts priced individual. I found out from another dealer that you can get a rebuild kit, then buy weights and rollers. Way cheaper. Also the grooves they refer to are at an idle. Not really a big deal.
 
I know it needs weights and rollers. I see the flat spots. The part that makes me angry is first the Bill was 1600 dollars. Parts priced individual. I found out from another dealer that you can get a rebuild kit, then buy weights and rollers. Way cheaper. Also the grooves they refer to are at an idle. Not really a big deal.
The part number for the spider shims is 8bw-17654-20-00
 
Had another dealer look at our 2 vipers today. They said my sled needs a full rebuild. The primary sheaves are definitely grooved and need replacement. They recommend a full rebuild. The other sled just needs weights and and bushing. So mine with a total rebuild is 1045 bucks out the door. Other sled would be 425 out the door. With that being said, he did say I might consider doing a full rebuild on both. He said otherwise I’d be spending a little this year, then next year, it would probably require more. Do it all now, and get another 6000 miles with no trouble, maybe more. On a brighter note, he said the secondary clutches look really good.
 
What belt are you running to wear out your clutch faces?
 
What belt are you running to wear out your clutch faces?
Just running the stock belt they came with. They say it’s from running the same speed for long periods. I don’t know about that. My sled is way worse than hers. Her sled basically has one slight groove.
 


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