What happens if you back off the throttle pedal to about 80% of WOT? Let the machine get up to 55 or so, then floor it. I wonder if your belt is slipping, and the RPM's are so high that the Rev Limiter is kicking in, and doing it's job?

 

First when you say you "did some work to it" what exactly did you do?
When you bathed it did you avoid the air intakes on the bed sides? Clutch housing may have water in it..causing the belt to slip. Pull the drain plug (red plug on the cover near drivers side rear shock). If any water comes out then you will need to rev it in neutral a little to completely dry out the clutch housing.
Also check the engine air filter..Make sure you didn't get water on that side.
Also some times when you force water into an elec connection with pressure it doesn't easily evaporate..but Id be surprised if that's the issue, I've pressure washed mine before I put dielectric on all the connections with no problems..

 

No engine work. Just dinking around stuff.

I come from the snowmobile world. I does actually kind of feel like clutch slip.

No I wasn't really careful about staying away from the vents. Totally forgot about them when I was washing it.

I will check the clutch.

I checked the air box and filter last nigt. They were bone dry.

 

It does start to happen at a certain speed. I am betting the clutch and belt are wet. That's what it feels like from my experience on snowmobiles.

 

I drove it to a buddies house tonight. It got better on the way there. I read your posts when I was at his house. On the way home it was better yet.

Got home took the red plug out. No water drained out but I did rock the car back and forth and I could hear water sloshing around. It has to be inside the clutch cover.

If the water doesn't come out with the plug removed should I just take off the clutch cover? Seems logical or is there another trick to get it out with having to remove the clutch cover.

 

It would be rare for there to be water in there if you ran it at speed for much time..it usually will blow out the belt exhaust. Woudnt hurt to pull the cover though, it doesn't take but a few minutes. It the belt got wet and was slipping and you didn't realize it it may be glazed over and need replacement. So it could have been water and caused a toasted belt. The belts can take a good bit of abuse though..only a visual inspection will tell the tale. Could it have been fuel you heard sloshing?

 

Had this hapeen twice with my rhino.the first time i found a wet ignition wire sprayed wd40 on it ran great second time i couldnt find the problem after a few days it went away

 

I have the same problem with mine (2012) hitting the rev limiter around 50-55. This unit has less than 20 hours on it by the way. I called the dealer and they said it is in the clutch. Due to the fact, I am off this weekend and going to ride, I will not take it back until next week. The dealer I am taking it too in my opinion is one of the best. They are the leading Polaris dealer in Kentucky. I will post my results of what they find out what the problem is and let you guys know. I am not sure on the turnaround for them but I will post it as soon as I get it back or they let me know something. Now with all that siad, I have been a Polaris rider for many years and have not had any trouble with there machines (ATV). For what I paid for this 900, you would think it would be right from the get-go. After this, I may needed to buy a Can-Am. I have aslo been doing a lot of reading on here about the same issue and people stating they will post there findings after they get the machine back form the dealer of there own findings and found not much information.

 

I have the same problem with mine (2012) hitting the rev limiter around 50-55. This unit has less than 20 hours on it by the way. I called the dealer and they said it is in the clutch. Due to the fact, I am off this weekend and going to ride, I will not take it back until next week. The dealer I am taking it too in my opinion is one of the best. They are the leading Polaris dealer in Kentucky. I will post my results of what they find out what the problem is and let you guys know. I am not sure on the turnaround for them but I will post it as soon as I get it back or they let me know something. Now with all that siad, I have been a Polaris rider for many years and have not had any trouble with there machines (ATV). For what I paid for this 900, you would think it would be right from the get-go. After having this trouble, I am thinking I should have bought a Can-Am. I have aslo been reading on here about this issue and people state they will post the dealers findings or there own. I could not find a clear cause and that is a little scarey in my opinion.

 

Getting pretty common for the Castle Nut to back off in the primary.......I have seen 4 already,including mine

 

Just had an XP4 do it on the dyno.

Nate
Alba Racing

 

mine did same thing, there was mud caked on the little rubber drain thingy that hangs off the bottom of the inake box, that allowed water to build up and run into the belt cover and make it slip. took off cover dried it out and been fine ever since, i often squeeze the rubber deal to let water out or see that water is draining out as I am washing machine

 

I took mine to see if it was hitting the rev limiter or slipping. Hit is hittin the rev limiter between 50-55. However, I could let up on the throtle and it would get better. I loaded it up and took to the dealer and told him about the castle nut and he said he has not seen that issue on the 900 but has seen it a lot on the 800. I told him either way I just wanted it fixed. He seems to think there is just something wrong in clutch from the factory. Not sure on when I will get it back but I will update everyone with the dealers findings.

 

I had to order the tool. We have tried tightneing without it twice now and it just keeps coming off...

Nate
Alba Racing

 

SENT PM on the fix

 

I guess not?

 

I'm curious about this also. Mine is doing the same thing

 

Well I took mine in for 19 hour service and told them all the things recommended on the forum. They found no water or no loose parts in the clutch. I drove it a few more times before taking it in to the dealer. I think it was water in the clutch cover that evaporated as I drove it.

The dealer found nothing wrong when they test drive it also. So who knows at this point. Taking it to the UP of Michigan for 4 days next week. We will see if it acts up then.

 

Just a little update… I called to see where the dealer was with the figuring out why it was hitting the rev limiter at 55. They told me there was nothing obvious they could see. They have a call in to Polaris on this issue and would let me know what direction they would go. I ask them about the “nut” backing off and they said it was tight. Now here we go…….. There are only two parts to this equation from the best I can tell. It is either the primary or the secondary clutch. For the price I paid, I think they should just replace either both or do a process of elimination to determine which one it failing. I am going to give them till the end of the week and then go pick it up and order a clutch kit for it and do it myself. This is sad to do but at this rate, it is un-telling when I will get it back. I will keep you all posted if any turn of events happen.

 

There's a possibility one of your rollers is sticking, or has a flat spot on it, not allowing your shift weights to move all the way out. Your shift weight might even have a rough spot on its back side, Be missing a piece of metal, or be missing one of its bushings. To raise engine RPMs, you need to lighten the shift weights, or keep them from fully extending. (as far as clutching is concerned).

If you pull your cover, then belt (note direction), then using a pry tool, gently spread the primary sheaves together, until you can put your finger in between the roller and shift weight, so you can manually spin the rollers.

Be careful to either use something to hold the sheave together, or make sure your pry tool is secure, so you don't get your finger caught in there. This tool will help:
UTV - Tools - Sheave Clamp Tool - Starting Line Products

Have you blown a belt, and not get all the debris out of the sheave? With the cover off, and the belt removed, start the engine and cycle the RPMs a few times so you can visually inspect that the sheaves are opening and closing properly. I recommend facial protection, because it has the possibility to fling debris out of the sheave with violent force due to the high RPM required to get the sheaves to open.

Here's a link for the spider nut socket:
UTV - Tools - Drive Clutch Spider Nut Tool - Starting Line Products

Good luck!

PS, don't lubricate any of the clutch pieces in a way that some of the lubricant could come into contact with the belt or sheave's belt contact area! Centrifugal force can/will fling stuff everywhere!!!

 

You can also remove the 6 primary cover bolts and then the movable sheave will slide freely...so you can check the rollers and weight ect with no need to pry on anything. Mark the cover relationship so you put it back on just as it came off.

 

It sounds like a lean condition. Mine did the same The same thing. Power commander and auto tune fixed it right up. These machines are way lean from the factory for emissions.

 

Ok, I went and picked my 900 up today. I asked them what they found and the service manager said “ it had a bolt lose in the clutch.” So I ask what bolt it was and he said, it was not the spider nut but a nut that holds one of the rollers in. I ask him if test drove it and he said “yes”. Then he proceeded to tell me it only missed one time around 65mph after they tightened the bolt up (is this normal). He told me to “ride the fire out of it to check it out”. I could not test run the machine at the dealer and had to work tonight but I will take it for a test run in the morning. If it is still not right, I may order a clutch kit for it and put it in myself. I was just wondering if it would void the warranty further down the road. I got the extended warranty (five years) but it does me no good if they can’t fix it…..

 

Please keep us informed, I'm going to take mine apart tomorrow and I will let you know if I find anything also. Mine accelerates great but when I reach about 55mph the tach goes to 8450rpms and starts skipping it just started this two weeks ago. I noticed it after cleaning it up and driving it down the road to dry it off. Mine is definitely in the clutch. I have had it apart before when I installed the adjustable weights, I'm thinking one of the bolts that hold the arms on is loose also.

 

Well I wouldnt put much confidence in their work...there are no bolts holding the rollers in..they are held in by pins. The only bolts on the primary are 6 cover bolts, 3 for the weights and the bolt that holds the clutch on the crankshaft. As fr hitting the limiter at 65 not normal. A clutch "kit" generally only contains weights and a spring for the primary clutch and a spring and sometimes a helix for the secondary..if none of those components are causing your problem then a kit won't help.

 

If the rpm does not go up I'm gonna say it's a lean condition this new rzr we just got just did this today at 67 mph after the temp dropped to 58 deg. Here we just installed a power commander 5 and tuned it and it's fixed! A/F stock on this machine at wot. Was 14.6 now 13.1 they can sure seem like belt slip but 90 % of the time they are lean. The dealer will never say it's lean for whatever reason but it is what it is. Hope this may help

 

my rollers in mine wore thru to the pins, I replaced rollers, pins, and bushings, and bought an epi clutch kit instead of buying weights. I got the clutch kit and it didn't come with weights!! It had primary spring, secondary spring, and helix. I think its running too high rpm now. Doesn't feel as fast. It engages harder, but not any higher rpm. I need to run it against another xp to see for sure before I take it out. Mine has 2500 miles on it and was stalling when I stopped, different problem than you guys, but if you buy a clutch kit for the weights, make sure it will come with them before you buy!

 

Rode mine again yesterday. It is still doing it. Not as bad and not as consistently. It almost seems to work itself out. When you accelerate and first get to about 65 mph it had a little hiccup and when your speed increases it goes away. I leave on wednesday for a long trip. I hope it holds up.