Just rebuilt the engine. Everything was fine on the trail. We got back into the snow and after I would run it for at full throttle up a hill, I would let off and head back down and the engine wouldn't pop back up above 4500. After I sat for a minute it would run fine again till I would max out rpm's again. No check engine light. I checked the plugs and they are fine. Engine compression is good. Could this be the computer? I've seen something about a relay that can go out. Thanks for the help!
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