My 2011 wont run

[Polaris900RMK]

So here's what I have going on. I have a 2011 800 Pro. It has around 1,300 miles on it. I did the fix kit last year with a high compression head and new plug wires. It has been running good until just recently. The last few rides it has been cutting out briefly when I go to full throttle from about 1/2 throttle or less. But it wasn't very often. Maybe a few times each ride. Today I was riding and the sled would just completely fall in its face and have zero power. It would sputter like it was about to die, but it would stay running. I changed the plugs and it ran normally for a few minutes and then did the same thing. I got it back to trail and it would not run at all below 1/2 throttle. It would just sputter and almost die. Once it was past 1/2 throttle it would run but sounded ****ty and had no power. I checked the compression when I got home and it's good. 125 and 130. Any ideas on what is going on with my sled?

Any help is appreciated.

 

[LeviD]

Old gas? Clogged fuel filter or line? Kinked line? I'm no expert and maybe someone else will have a better idea but sounds like a fuel issue.

 

[Polaris900RMK]

I thought maybe gas. But it's only a few weeks old and my other sled runs great on it. Fuel filter.... Maybe. I was thinking possibly a fuel issue too

 

[LeviD]

Have you ever replaced the filter? If not start there after following your lines. Even if it doesn't end up being the filter but you've never changed it, it would be good to do regardless

 

[Polaris900RMK]

I agree I need to change it for sure. It's weird it almost dies, bit it does keep running. The idle stays normal after it stumbles. The check engine light comes on. But only as it is about to die. Then it will just idle normal. I hit the throttle and it stumbles and tries to die until it's past 1/2 throttle.

 

[BILTIT]

Change that fuel filter.

 

[Reg2view]

Or injectors, or fuel pump, or power to the fuel pump. As I'm guessing you know, the 11's came with a mix of injectors, too, red, blue, yellow. What do the plugs look like, compared to each other, etc.?

 

[Polaris900RMK]

It looks like I have the yellow injectors. And the plugs look pretty good. When I changed them on the mountain. The exhaust side was a bit darker. Then the new plugs.... I pulled them out when I got home and they liked pretty identical.

 

[Norway]

Reeds maybe.

RS