Jackshaft Bearing Change 2007 RS Venture

[Roger]

Just went to pack some extra grease into the jackshaft bearing, at the clutch end, and could actually lift the shaft a bit in the bearing. The bearing is definitely worn and needs replacement. What is the easiest way to replace this bearing? Does anyone have cross reference numbers for a bearing supply store, rather than Yamaha original parts?

Thanks

 

[yox185]

That's one bearing I would use OEM to replace. It's a bit of a job to replace so you're going to want a quality part.

http://totallyamaha.com/snowmobiles/aaTECH/Jackshaftreplace/Jackshaftchange.htm Here's the procedure.

 

[Dmaxxer]

I tried to find a replacement bearing and wasn't able to at a bearing supply store. Just buy the Yamaha bearing.

 

[Roger]

Thanks for the advise. I was hoping for an easier fix than dismantling the chaincase, and a cheaper bearing than Yamaha, after all, Yamaha doesn't actually make any bearings.

Thanks again.

Roger

 

[Irv]

Thanks for the advise. I was hoping for an easier fix than dismantling the chaincase, and a cheaper bearing than Yamaha, after all, Yamaha doesn't actually make any bearings.

Thanks again.

Roger

I don't believe you need to dismantle the chaincase if you don't want too.

Maybe do a search as I believe lots have changed out this bearing quite easily without getting into the chaincase.

 

[Geezer 2]

I haven't had any problems finding a quality replacement bearing. You can purchase from Yammy but they don't make them.

 

[YammyRX1]

I could be wrong but I doubt Yamaha orders special higher quality bearings from the manufacturer. They might specify seals on one side or have a special tapered inner race but this is all available aftermarket for a fraction of the price. I bought kits that contained all seals and bearings for both shafts for under $100. Sent you a PM

 

[Roger]

Thanks for all the info. Still looking for an easier way to change this bearing.

 

[YammyRX1]

Did a few searches here and the only method that I saw to remove the bearing without touching the chaincase is to tack weld something to the bearing and use a puller.

 

[Roger]

Thanks for the reply. I will attempt to remove the wedge, and then possibly get an internal bearing puller in there, to get the bearing out.

Thanks

Roger

 

[Ebrown70]

This time of the year we see about 2 a week on Yamaha 4 strokes , with jackshaft bearing failures,
have switched to using a better bearing , and still testing the built in collar design on my own sled , like the clutch side driveshaft bearing uses. getting away from the taper collar with spanner nut that keeps coming loose ,

 

[Ebrown70]

This is what I replace the OEM Yamaha bearing with , The worst bearings I see used are from the All balls kits , those are garbage and a very cheap substitute ,

 

[shed]

my 07 has that tapered inner race bearing also
did mine 2 times at 9150 and at 18500
first time the bearing spun on the shaft, had to frankenstein it back together
2nd time replaced the shaft, wow $450 in canada

my 2011 has the other bearing/mount system, not the tapered
yeah