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Primary and Secondary Parts

2311 Views 15 Replies 6 Participants Last post by  L3rian
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I am a bit disappointed in myself for not following a strict PM of the CVT system.
The service was done at a shop at 2500 miles and all was well. I had planned to service myself but life got in the way and I let the servicing go. I figured I could go longer between the service because all I do is putt putt around hard pack.
BOY, WAS I WRONG! Take the lesson from my costly mistake.
I ordered parts online from Babbitt, Partzilla and Hunterworks. I already received from Hunterworks but the OEM parts are delayed until 10/27. A total of 8 weeks out for oil seals and o-rings.
The secondary needs complete replacement. The primary needs a complete rebuild.
The secondary spring cup was completely destroyed, the rollers were about through and about to pop out. I guess I am glad I caught it before it grenaded.
I know it’s my fault for not following the service but it is a pretty aggressive schedule, it needs to be followed.





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Bummer mines due for servicing but I don't have access to the shop I used to do work like that in and really don't want to do it in my open driveway. Thinking about taking it up to Big Pine and just letting them do it for me.
I am a bit disappointed in myself for not following a strict PM of the CVT system.
The service was done at a shop at 2500 miles and all was well. I had planned to service myself but life got in the way and I let the servicing go. I figured I could go longer between the service because all I do is putt putt around hard pack.
BOY, WAS I WRONG! Take the lesson from my costly mistake.
I ordered parts online from Babbitt, Partzilla and Hunterworks. I already received from Hunterworks but the OEM parts are delayed until 10/27. A total of 8 weeks out for oil seals and o-rings.
The secondary needs complete replacement. The primary needs a complete rebuild.
The secondary spring cup was completely destroyed, the rollers were about through and about to pop out. I guess I am glad I caught it before it grenaded.
I know it’s my fault for not following the service but it is a pretty aggressive schedule, it needs to be followed.





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If everything was fine at 2,500 miles how many miles were you at when you finally serviced it and noticed the issues?
Bummer mines due for servicing but I don't have access to the shop I used to do work like that in and really don't want to do it in my open driveway. Thinking about taking it up to Big Pine and just letting them do it for me.
That was part of my problem, I didn’t want to tackle it out in drive as I was in process of building a new shop. Hind sight is 20/20. I now know I would tackle it in my driveway.


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If everything was fine at 2,500 miles how many miles were you at when you finally serviced it and noticed the issues?
It now has just at 5700 miles. I knew it was past but I didn’t realize how far past until it was too late.
I drive it to work a lot, it’s a lot faster and shorter through the trails then by car. The mileage just got away from me.


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Thanks for sharing your experience, DugK. I have friends with a 2021 X2 and they frequently comment about the 10-year belt warranty. I interrupt them to say you still need to service the CVT!
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About what speed is that notch in your secondary? Mine was almost identical.
My slug kit and slippery washers came yesterday so I started tearing down the Viking this afternoon. (I know this isn’t something you can do on a Wolverine) Really not a hard job just time consuming. Went pretty smooth except when I started putting oil back in and realized after putting in almost a quart I had forgotten to put the drain plug back in 🤬🤬.
well hopefully that’s the only thing I did wrong putting it back together. All I have left is to assemble the primary clutch and button it up. I did not put that back in because my roller weights were just starting to get flat spots on them so I ordered new ones from HW. So probably won’t be back together until end of the week. Also at 1090 miles my wet clutch looked like it had gotten hot a few times, probably from some of the heavy trailer loads of firewood I have pulled and snow plowing. So I lightly sanded the wet clutch pads surface to clean them up, they still had plenty of material left. I’m glad I didn’t wait until the 1500 mile Yamaha maintenance schedule. In fact I now wish I would have done this sooner now.
I mainly am posting this to echo what others have said about not waiting until the scheduled maintenance time or beyond if you work your sxs hard.
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Today the seals finally came in. I watched Massive’s videos and also JBS Performance videos. It was a pretty easy process. It may seem overwhelming but it’s not. I put everything back to factory specs and parts minus using tink seal. It took me 3 hours to rebuild both, install and test ride.
A spring compressor is what I used. I made mine out of threaded rod, 2in conduit coupling with “legs” (2 inch flat stock) welded on outside(crude but works). My work bench is a 1/2 plate steel that I drilled and tapped. I also feel there are two sockets for the impact that are necessary. A 27mm to remove primary and secondary. A 55mm for the secondary spring.
I plan on servicing at 1200 miles. A day spent is a whole lot cheaper, I may bump it out after that but right now I am pretty tore up at the expense and length of time to get parts.


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About what speed is that notch in your secondary? Mine was almost identical.
Not sure what you mean. That notch is not supposed to be there. Mine acted odd. I mainly just cruise dirt roads. But I did notice the rpm’s were higher and one time I took off down the road and it wouldn’t go over 34 mph, then it acted like it power shifted..


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Glad you got it back together! Thanks for the update.
Thanks Paul!
For her birthday my wife wanted a buggy ride to Dairy Queen. It’s a 35mile trek through the woods (round trip). I was able to give her that.
I will say that partzilla came through for me.
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That is very cool, glad you were able to do that for your missus. :cool:
Partzilla STILL didn't come through for me, waiting on rear flares since freckin JUNE, possibly delivery date DECEMBER
Partzilla STILL didn't come through for me, waiting on rear flares since freckin JUNE, possibly delivery date DECEMBER
That definitely stinks. I ordered seals from my local dealer, Babbitts and Partzilla. Partzilla is the only one who came through.
Supply chain is horrible. I ordered a backhoe from Kubota, it took 14 months.


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Not sure what you mean. That notch is not supposed to be there. Mine acted odd. I mainly just cruise dirt roads. But I did notice the rpm’s were higher and one time I took off down the road and it wouldn’t go over 34 mph, then it acted like it power shifted..


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I know the notch isn't supposed to be there, I was meaning at what speed is it starting that notch into the sheave? It can be RPM dependent, meaning if your clutches have fully shifted the only thing changing your speed is engine RPM. Sounds like around 34 mph is where the pins hopped out of the notch and completed the shift. I'm also a mostly dirt road cruiser. Glad you got it back together!
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