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Wolverine X2/X4 clutch mods

57K views 88 replies 20 participants last post by  therebel19  
Just some recommendations based on my experience so far (this is using HV greaseless weights, stock secondary spring, no shim, and swiss-cheeesed air filter lid):

26" stock tires:

Stock 22 gram or 21 gram weights are fine for trail riders. If you're using SpeedoHealer, you need to stick with heavier weights if you want maximum top speed......60 MPH plus

27" tires:

18 gram weights give you plenty of torque but your gas mileage will suffer. Mine went down to 15 MPG. With machined sheave and SpeedoHealer you'll still be able to hit 60 MPH
21 gram weights are great cruising weights. You'll notice a little torque loss. Gas mileage is great at 19 MPG. With machined sheave and SpeedoHealer you'll be down to 58 MPH

With 18 gram weights my engine temps ran hotter vs the heavier/near stock 21 gram weights.

19-20 gram weights I think will be perfect for the non-mudder. Will try and experiment with this weight next.

28" tires:

16-18 gram weights depending where you want the majority of your power. Choose 16 if more low end is desirable, choose 18 if more top end is desirable.

Anything bigger and chances are you're running portals, which already has built-in gear reduction.
Hey Massive. I have to ask because I googled it and came up empty. What brand are the 18g HV weights you have? Are they Hunterworks? I can't seem to find them on their site if so.
 
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Ok. I was looking for a section for the X2/X4. So these are listed in the original wolverine/viking section and in the Rhino section. They must be have the same outer dimension as the oem. I am by no means an expert at these clutch setups and I would feel more comfortable if they had a listing in a section for our X4 AND X2's.
 
That's good info right there. Thanks again!!!
 
So if that is the case then I should be able to run EPI weights if I wanted to stick with metal weights. These say that they are for all Viking and Rhino models. They don't say wolverine 700 though. They do have a clutch kit though for the Wolverine 700 as well as Rhino and Viking. So I guess they all use the same weights. They also have many different sizes to choose from. 10, 12, 14, 16, 18, 20g and so on up to 32g.

https://epiperformance.com/roller-weights-18-grams-we241018/
 
They have the plastic housings for them too on the same website. I just never had any problem with the metal rollers and grease ever in my Rhino and I had done a lot to it. I had that little 450 hitting 41-42 mph by the time I was done with it with the motor all stock. My buddy had even drilled the weights to lighten them for me. I dont want to drill X4 though. A lot more torque is coming from this 850 than from the little 450 I used to have. I want everything to stay strong.
 
Ok I just found something interesting. Yamaha is now showing a second part number under their big tire kit. It is for the X2. Part # B8K-E63H0-V0-00. It shows the 2019 X4 as listed to be the original part # along with the 2018 X4 models. The clutches should be the same in both models so could these be a different weight option?
 
Ok. I just got done reading the tech article on the HV weights and at the end it talks about using them with their coated sheave. I could use these with my stock sheave too though right and why do I need to change the cam plate sliders? Sorry to be a pest I just want to do this right as well as understand why Im doing what Im doing.
 
I think I figured the cam sliders out. If your going to run greaseless, you need greaseless cam sliders as well. Still puzzled about the coated sheave thing.
 
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Thanks so much for your knowledge. I think Im gonna give the greaseless setup a shot. Seems to make sense.

Nice shooting too and nice CCW choice as well. Im partial though because I carry the same. Shield 9 in FDE. Got it last year when they were doing the $75 Shield rebate and love it. GOOD STUFF!!!
 
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So got the cam slides and weights in hand finally and can't wait to get them in. I hoping to do them next week because I'm on vacation from work but also want to do some fall leaf peepin' before all the colors gone so not sure if I want the down time. We'll see though.
 
So got the cam slides and weights in hand finally and can't wait to get them in. I hoping to do them next week because I'm on vacation from work but also want to do some fall leaf peepin' before all the colors gone so not sure if I want the down time. We'll see though. View attachment 71026
So just an update everyone. I got my clutch weights installed yesterday with pleasing results. So far its exactly what I was hoping for. The 18g weights definitely gave be my bottom end punch back as well as the top end when I have extra passengers since putting on the 28" tires. It took all day yesterday to do it and let me tell you its not a horrible job to do but the amount of things you have to disassemble to get to the clutch is kind of a pain but worth it in the end. Sorry I didn't take pictures of the whole process but I was borrowing some good friends of mines garage to do it since we've had rain out here all week and I don't have a garage so I was just trying to work as fast as possible. I still didn't finish until about 1 am last night. We took it out for a middle of the night test session though. Im about 195 lbs andmy buddy is about 275 and it hauled us like it did with the stock tires. I was able to max out the speedo at 51 on a slight up grade on the road with the 28's. VERY NICE!!! It doesn't sound like it's over revving either at top speed. It actually sounds like I have plenty of room to go. So time for this new ECU flash now. I think its exactly what I need to finish her off and end up with the reliable extra performance I'm looking for.....
 
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Are you concerned that if you do get a different ecu with the capability to hit 65 mph that the 18g weights will be to light?

My plans down the rode is to get a different ecu, but I also want my clutch to be planned around a higher top speed.
I'm pretty confident that it will be fine. But if it does seem to rev too high at that time I'll try some 20g weights are just put the stockies back in.
 
I'm wondering if the Weller Racing ecu to remove the speed limiter combined with the Power Commander they now have for the X4 for fuel adjustment would achieve that. Would be an ideal setup. The ecu of course is up front and I've researched the Power Commander and it hooks to the injectors and the controller for adjustment attaches near the oil tank. So its entirely by the motor. I don't see why they couldn't be used together. New stuff to research....:cool2: