Help troubleshoot artic cat UTV that just started running rough.

This Artic Cat UTV was running great two days ago but today it started to run terrible anything past idle. it starts fine. it idles fine. But when throttle is pushed it stumbles terribly. Plug looks fine. Tested fuel flow in to jug, tons of fuel. Took muffler off, it still stumbled bad. Both air filters good. TPS solid and seems to be working right. Wild guess is tgat its getting too much fuel. I dont know how to check or adjust mixture and cant imagine it would go bad instantly.

[@paulwright6121]

Change spark plugs and or ignition coils. Dirty carb if it has one. Had this on a single cylinder bike once and it was a faulty plug.

[@charosenz]

I have a new plug and I also tested the fuel pressure, its fine at 40+ psi. It runs just fine up to 2000 rpm then stumbles. Its like a fail safe mode in a car. Could be the tilt sensor gone bad. Going to check it tomorrow.

[@senorfrijole1134]

Have the same problem in my Polaris ranger. If you find out what the problem is please share.

[@charosenz]

I did get it working. I changed so many things i am not exactly sure was was the trick....but....it may hae been a faulty safety switch in the seat. I replaced so manyvtrhinfs like air filter, plugs. fuel, fuel filters, fuel line and took apart and clean the saftey sest switch (sealt belt switch too?)l....and now its works fine.

[@fullhouse7727]

ever figure it out?? might be out of time?

[@paulswarden1387]

Did u ever find out what was wrong with ur cat

[@basscat11ify]

Jumped time...