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Discussion Starter · #1 ·
This is the way these rigs should have came from the factory. I had a JBS Extreme sheave with 16gr weights, gold spring, wet clutch slugs and 28x10x12 Blackwater Evo's installed yesterday and this thing is an absolute beast now. The dealer also used their YDT tool to add fuel to it to help with the stalling issue and so far it is working great. This thing has way more acceleration now than it did stock. I am completely happy with everything we installed and can't wait to get it out on the trail system once the weather gets a little better.



 

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Awesome. Can't wait to get mine and get it installed. Tell more about the YDT tool and what they did. How was the sheave and slug install ? Did you do it ? I did mine on my rhino and will probably do mine on the Wolvy.
 

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Did you paint your stock rims black ?
 

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Discussion Starter · #4 ·
The wheels are the black Viking SE wheels. I had my dealer do the sheave install and they said it was more time consuming than the install on my Rhino because of not having a tilt bed on the Wolverine. The YDT just stands for Yamaha Diagnostic Tool. I don't know what all exactly it can change but he said he set my fuel to 35 whatever that means. Before when in the technical stuff as you came off of the throttle the rpms would drop below the set idle rpm and it would kind of stumble to get back up to idle and sometimes die. It does not do that now.
 

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Thanks. Can't wait to do mine. Give us an update once you put her thru the paces. I know it's the low end grunt that is the biggest gain but let us know the top end.
 

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Yep, sheave's make a big difference in acceleration for sure. Even my heavy 28" Mega's do just as good as the stock 26 bighorns with the stock sheave.
 

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A sheave is probably the best bang for the buck mod you can do.
 
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Awesome to know these things can go to beast mode, if you really want them to
 

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Thanks for the review, its good to hear a review on the JBS sheave! Whats your top speed now?
 

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Discussion Starter · #10 ·
It will be Monday before I can get a good top speed, we have snow now on the ground and with two people and 50lbs of feed in the back 48mph was all that felt safe. If I put it in low and stab it from a stand still it will barely bump the rev limiter before it shifts up enough. I still think that I am going to buy a pc5 so I can raise the rev limiter a bit. It was 30 degrees today and I rode though some really slow rough creek boulders and didnt have any dying.
 

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I had one mile on mine when the jbs sheave went in. I have stock tires so I went mild, 19g od's (oem is 21g) and stock spring, slugged the clutch. My top speed is 54-55 mph. I would like to hear about the ydt tool also.
 

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Discussion Starter · #12 ·
Well the snow is gone now. Looks like 49/50 is all the hp I have will push it on flat ground with all my extra weight and larger tires. You can see in the video where it goes from flat ground to downhill it picks up to 55 and then I let off of it.

 

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Discussion Starter · #13 ·
Compared to my 2013 Rhino with 11:1 JE piston, Raptor cam, JBS sheave 15gr weights, 26" OG Big Horns, Dynatek and Bazzaz controllers.

 

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Can't wait to get mine. Did you slug your clutch ?
 

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Discussion Starter · #17 ·
Yes, I slugged my clutch.

I did buy it all through my dealer who got all the parts through JBS and they installed it.

So I paid $1400 for everything listed below installed along with full service and front/rear diff fluid changed.
JBS Extreme sheave w/ 16gr weights
Gold spring
wet clutch slugs
28x10x12 Blackwater evo's all around
counteract balancing beads for my trailer tires
 

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That's not to bad with the tires installed. I'm sure just the slug/clutch install was a good bit for labor charges too. It's not hard at all just takes some time.
 
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