1995 zr 580
Hello everyone, I recently purchased my first snowmobile, a 1995 zr 580. The first ride I took it for about ten minutes into the ride, it started slipping the belt and had a bog. We took it to my buddies house and replaced the belt with a brand new one, at first it worked amazing, then about 5 minutes later it started slipping again. So we cleaned the carbs and jets and it ran good for about 20 minutes then started bogging again. After that we replaced fuel pump and fuel filter, it ran amazing for one day then the same thing started happening. It starts perfect(1 or two pulls) idles great, and runs great until it warms up. It also hasn't slipped the belt since we replaced the fuel pump and filter, just has the bog. I took a look at the spark plugs after it started the bog and they seemed to be light brown and white dry. I have videos and pictures of the spark plugs and the bog itself I also did a test for the spark that I have on video, spark seemed to be good light blue. I was hoping someone would be able to help me figure this out, as I really really want to get out to ride and ice fish. Thanks for any help!