please help new belt lost low power - Yamaha Rhino Forum - Rhino Forums.net
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post #1 of 16 (permalink) Old 04-12-2017, 01:36 PM Thread Starter
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please help new belt lost low power

Hello All, I just signed up. I am new to the UTV scene. I wanted to pick up a rhino to drive kids around and just have a little fun, nothing crazy. Rhino was the way to go, no interest in RZRs. I picked up on 2009 with 90 hours for cheap. I like to start fresh maintenance wise and learn, so I wanted to change oil and new belt from the start. I put about 50 miles on it prior and was lots of fun. I changed the oil last week and put on new belt. I watched a couple youtub vids. I got it all back together and took it out last night. It has no low end power, once going it feels pretty normal, but even still feels like its "locked" in to soon and not "clutching" at all, like its stuck in 5th gear on a non-belt transmission. couldn't go up any type of steep hill without it not being able to turn tires. It was not like that before I swapped the belt.

I am 99.5% sure I removed the "spreader bolts", but will pull it all apart this weekend to make sure, again I think that would make it stuck in low gear though? no ideal. I am 99.99% i removed them so I really wouldn't even consider that a plausible issue. But I did have the sheave off and to install it i just slide it back on and tightened the nut. was there supposed to be more of a process than that? I got the top end empi belt from rockyMT and I did wash it in dish soap. thanks for any advice, super excited and kids love the rhino. thanks all.

rob.
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post #2 of 16 (permalink) Old 04-12-2017, 01:50 PM Thread Starter
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after watching the youtube videos again I bet I mishandled the sheave, the hunter works guy said not to let the assembly move, mine probably moved all around, so I got that thing out of alignment or whatever. does that mean I need to disassemble that piece to get it working proper again?
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post #3 of 16 (permalink) Old 04-12-2017, 04:57 PM
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More than likely you had a weight flop, also when you put the washer and nut back on make sure that the washer goes up on the splines as you tighten the nut hand tight, then torque the nut. Once you have it back together with the primary cage on you can start and rev the engine to visually make sure the belt is working proper.
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post #4 of 16 (permalink) Old 04-12-2017, 08:14 PM Thread Starter
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Thank you. How do I fix the sheave? How do I get the weights back to correct? Yes I didn't put any effort to lining up the splines, just tightened it. I guess that sounds dumb now
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post #5 of 16 (permalink) Old 04-13-2017, 04:20 AM
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Originally Posted by jetjock15 View Post
Thank you. How do I fix the sheave? How do I get the weights back to correct? Yes I didn't put any effort to lining up the splines, just tightened it. I guess that sounds dumb now
Even though you don't have a machined sheave watch these two videos and basically do what I am doing here

Video link- Rhino Clutch Removal


Video Link - Rhino Clutch Assembly
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post #6 of 16 (permalink) Old 04-13-2017, 05:37 AM
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No splines on the washer, just make sure the washer doesn't butt up aginst where the splines start. The videos help a lot.

FLOYD, SANDI & Sadie is the co-pilot. 05 660, 3000# GORILLA WINCH, LED headlight Mod, 12' led light bar RZR seats, 2" CFM lift kit, Resi shocks, TUSK TRILOBITE HD tires stock 12" rims, CUSTOM PAINT(the rescue chopper can find us know)

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post #7 of 16 (permalink) Old 04-13-2017, 12:07 PM
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Bad thing is .... it probably didn't even need a belt.
Rhinos have a wet clutch and don't burn belts like the others!
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post #8 of 16 (permalink) Old 04-13-2017, 01:01 PM Thread Starter
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Ugh ya. Those videos show how to install the sheave but I need to figure out if "a weight flopped" or moved. So I have to pop it apart? How much are the machined ones, I wouldn't mind an upgrade especially if it avoids me having to open up the stock sheave
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post #9 of 16 (permalink) Old 04-13-2017, 01:13 PM
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YOU will have to take it apart again to check. Machined or not, it is the same process to remove and install. You have to hold the cam plate tight with your hand as you put it back on, if it gets loose enough, the weights inside will move around or even fall out of the tracks and not work properly. You just need to remove the outer sheave again and check it.

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post #10 of 16 (permalink) Old 04-14-2017, 08:38 AM Thread Starter
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Thanks guys. I'm ready to tackle this on the weekend. In the video they left the sheave cover off? Should I do that?
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post #11 of 16 (permalink) Old 04-14-2017, 09:51 AM
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Thanks guys. I'm ready to tackle this on the weekend. In the video they left the sheave cover off? Should I do that?
Depending on where you ride, this can be okay. Several of our desert and trail riders leave the cover off. If you ride in mud, I wouldn't go without the cover or you will be cleaning your sheaves all the time. The designed it with a cover for a reason, so I prefer to keep my cover on.

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post #12 of 16 (permalink) Old 04-14-2017, 10:25 AM
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I think he's talking about the primary movable sheave (camplate) cover, not the CVT cover. You need to reinstall it if you're stock, otherwise you're going to have grease everywhere. If you upgrade to a Hunterworks greaseless setup then you remove it.
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post #13 of 16 (permalink) Old 04-14-2017, 11:40 AM Thread Starter
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Totally makes sense. I checked out the hunterworks setup. Future upgrade. For now I'll run the cover and keep the grease in. Thank you.
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post #14 of 16 (permalink) Old 04-15-2017, 05:20 AM
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If you need help buying a sheave or not, call me monday


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post #15 of 16 (permalink) Old 04-17-2017, 09:19 AM Thread Starter
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Well guys, to keep you in loop, I appreciate all the advice. So again I bought this 09 rhino used with 90 hours and the guy did give me the oem sheave and said he replaced it. Didn't even think of that till now. I asked him if he did belt when I got it, and he said no. He was original owner.

I had totally forgot about that sheave until....

So I took it all apart, the videos and advice all made sense. Three rollers had flopped out and were jammed sideways. The three rollers were scared up so I figured I was done till I could get new ones. Then I remembered the oem sheave he gave me. It still had the rollers. So I cleaned it all up, it says "fix powersports" on side of sheave. I put all 8 oem rollers in the aftermarket sheave because I figured mix match would be bad, added new grease and buttoned her up. This time keeping constant pressure on the plate so it all stayed together (lesson learned).

So, any comments on that brand of sheave? Any issues with me throwing the oem rollers in there? Thanks guys.
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