What's with the "death row" cvt?

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Agreen

Member
Feb 10, 2013
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The sprocket on the back side of the cvt. My CVT shaft isn't long enough to support both sprockets like that. Does anyone know what they do (specifically)?

 

racie35

Active Member
Nov 17, 2012
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The sprocket goes directly behind the driven unit.....not outside the bearing holder...that'll also allow you to shift the engine inboard some. They only use one sprocket
 

Agreen

Member
Feb 10, 2013
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Southeastern GA
I think I got it all cleared up. I got a call from racie35 and he answered a lot of my questions. I think I'm going to try a 5/8" keyed shaft and cut it to length, thread the ends, and give it a go.

(The above picture is not my bike, it's the example from gasbike I was talking about)
 

MotoMagz

Well-Known Member
Aug 2, 2010
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Just,make sure the kit shaft is not stepped up for the bearings. I had to change the bearings on the cvt plat to use a 5/8 shaft. I use a different js plate now.
 

racie35

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Nov 17, 2012
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He knows the bearings may be metric stepped to another size. That is aggravating about those.
 

Agreen

Member
Feb 10, 2013
792
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Southeastern GA
Yes he did lol. I pulled it apart when I got home and sure enough, it goes from 5/8" shaft to 17mm. Luckily I measured the bearing outside diameter (they tap out pretty easy) and found that the OD is 1-3/8", a very standard bearing size. And finding 1-3/8" x 5/8" bearings is easy. So I'm in luck in that aspect.

I will be keeping one of the gears in between the bearing plate and driven pulley to keep it properly spaced out. It came with a #35 12t sprocket, and a #41 10t sprocket. Why not make the #35 gear into a spacer.
 

racie35

Active Member
Nov 17, 2012
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You can use collars for spacing too. Isn't that engine gonna sit way to far towards your left leg though? Centered in the bike the original location behind the driven unit is kinda close isn't it?
 

Agreen

Member
Feb 10, 2013
792
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Southeastern GA
From what I measured, it will be slightly offset to the left. The sprocket looks like it will sit just off the left of center of the engine.
 

Tony01

Well-Known Member
Nov 28, 2012
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Good thread. I always wondered about this. Be careful on steep hills though, I had belts start smoking on me and it wouldn't move after some point. Maybe I didn't have enough hp who knows.