o.k. here's my problem. I just bought a 99 mxz 600. The problem is that when I start it it idles fine, the minute I give it gas and the rpm's go above 3000 it will only drop to about 2500. I have done a compression test and it's fine. The only thing I can think of is that since it's canadian and I live in new york, that may ski-doo runs different size jets and due living in new york it would set it off. Please help I'm in desprite need.