does it miss or just loose power. Running hot maybe. Should not be above 210.

 

Does not miss and doesn't seem to be running hot. Like I said turning it off and starting it back up right away helps for a couple minutes. The longer it sits the longer it takes to act up agian

 

Thinking oil pressure relief valve sticking open. Cold oil is thick enough to operate the valves but once it thins out when it heats up, the lifters will stop functioning properly at higher RPM.

What year and model is your machine?

 

It's an 2011

My son had a similar issue with his RZR. Turned out that the fuel vent line was plugged full of dirt/sand. It's easy to check. If you haven't already done this, open the fuel cap the next time it acts up. If it's the same issue, you'll hear the vacuum release and then it will run fine for a short while until the vacuum builds up again.

Thanks I'll try it!

 

I was going to suggest oil pressure but it would probably miss fire quite often. I had 0 oil pressure at idle on my 800. Took apart pressure relief valve and no spring. Bought factory spring and it pegged my 150 psi gauge. Went into my spring bin and found one that would be about 10 psi at idle and 40 psi with higher rpms. It would run great and every so often it would drop out a cylinder and then run great for the rest of the day. Totally unpredictable. Tried a strong lifter cleaning solution for my oil. Nothing helped. Putting the spring back in it solved the problem. I'm estimating it ran with out a spring in it for years. currently has 9500 miles and runs great.
Go figure.

 

Ha. Pegged 😆

 

Hey hey, did you ever fix this problem with your razor?

 

This post was 3 years ago. Probably not going to reply. I would check fuel pressure first,oil pressure and compression just to rule anything else out.

 

Anybody figure this out

 

I’d like to know as well.

 

Mine had the same problem.. try draining all the gas and vacuuming out the tank and make sure there’s nothing in there. My problem there was black sand clogging, stuff up

 

Geez, I’m thinking mine is the seatbelt wire or connector. Last week I was riding I seen the seatbelt light flash a few times and it bogged down. But today I’m just barely going in low gear and the Rzr didn’t bog down but felt like it was being held back. Kinda like holding the brake and giving it fuel. No seatbelt light either. So I either have a bad fuel pump, seatbelt connector or something totally different all together.

 

Pegged 😆