I have a 04 ski doo mxz 800 with a new big bore motor. It's having idle problems. It idles around 2 grand but sometimes creeps up to 3 grand. When riding it the idle hangs and takes awhile to come back down. 370 mains (recommended by rk tek, engine builder), factory pilots as far as i know. Fuel screws 2 turns out. I really don't want a burn down and have to rebuild the motor. Can anybody look at it for me?