We decided to pick up a 07 Raptor 80. We know it didn't run when we bought it but were hoping to figure it out. The previous owner put a new motor in it last year because the old one wouldn't run. Not sure why he didn't get it fixed, the spare motor looks to be in nice shape, at least the bottom end does? Anyways, we got it home, I cleaned the carb, checked for spark, and put the battery on the charger. It cranks over, but will not fire. I am going to be picking up a compression tester small enough to test it, but not tonight. After reading a bunch of posts on them, I hear the valves may be out of adjustment. Does anyone have any info on how to adjust them. I have never worked on a four-stroke before. Thanks for any advice. Also, if anyone needs any parts off from the other spare motor I have, let me know and I will take some pics. I'm located in Michigan.