Following the advice from the experienced 800 owners, I installed the UMP air box system. I also put the stock exhaust back on my machine in the process. The Big Gun exhaust was too loud for my liking. I’m a previous MX guy and know that when doing intake and exhaust mods on bikes, you sometimes need to do something with adjusting fuel delivery. 1. Should I go back to an aftermarket exhaust using the UMP system, or will stock suffice? 2. Should I get a fuel programmer and adjust air/fuel settings using the UMP system? Thanks for any advice!

So winter is here we got 17 inches in the mountains and 12 in the valley in the last 3 days more on the way. This is my first winter with my Rzr and of course I plan on playing in all this wonderful snow!! Already been running it around town threw drifts and just your standard donuts and throwing it sideways around corners. But soon I’m going into the mountains and I would like to pickup a set of chains. My question is who has experience with throwing chains on these awesome machines? Is front and back with stock sized tires posible? How much snow did you go threw? Thanks for any input! BTW I LOVE MY RZR LOL!!

So winter is here we got 17 inches in the mountains and 12 in the valley in the last 3 days more on the way. This is my first winter with my Rzr and of course I plan on playing in all this wonderful snow!! Already been running it around town threw drifts and just your standard donuts and throwing it sideways around corners. But soon I’m going into the mountains and I would like to pickup a set of chains. My question is who has experience with throwing chains on these awesome machines? Is front and back with stock sized tires posible? How much snow did you go threw? Thanks for any input! BTW I LOVE MY RZR LOL!!

About a month or so ago i filled the tank full of fuel, now the gauge is flashing empty. Pulled the cap off the pump and can see that the float is sunk with a fuel tank of fuel. Was told a new sending unit was around 15 bucks, curious if anyone else has had any trouble with theres, and if this is a common problem?

When changing plugs I checked compression and have 150 psi in both cylinders. Specs. are 165. The engine still runs great. What is the lowest advisable compression before taking action? The engine has 200 hours and 2050 miles. I service the air cleaner every trip but it still got dusted.
Would repairing to stock specs be advisable or a bigger bore kit be better?
Machine has freer exhaust and commanderV with autotune.
What say all?

Thanks,
Norm

I recently picked up a 2012 RZR4 800 with 4,023 miles on it. It runs out well and I put about 50 miles on it this weekend in the snow of the Colorado Mountains.

My concerns are driven by a couple things:
The guy I got it from said the built only has about 700 miles on it, but he never mentioned the clutch. It has good pull out of the gate, but does not feel like it truly "locks in" if you understand what I mean.

It also has a little bit of a chirp and a gear oil or maybe rubber smail in heavier snow (yes in low range)…..

Thoughts? Is there a key list of shit I need to do or check at 4,000 miles? My local Polaris Dealer will do a full service and inspection for $500, but I am not sure if I need to spend the money…..

Thanks,
Mike

Has any one installed oil gauge and where would u plum in to the block I have a 2011 RZR S 800. I have it tore apart to ck bushings and brgs, cleaned clutches

My roof curves in on my 09 rzr and A want to add a cab enclosure to work with my pro armor doors.Is there something out there that will work or would I have to have a squared up roof?

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I know this has been asked so many times before but I can’t find an answer. I have a set of lights and need the plug that goes into the leds from the factory harness on the 900xp. Does anyone have that part number? No iam not paying 100 dollars for a patch cord from Polaris. Any help would be greatly appreciated

While reassembly my motor I snap one piston ring. Are there any one that I can get at Pep boys or Auto Zone that can fit???

Please help. Here there are no store that stock.