This is my first post so bear with me. My problem is that my 2005 raptor is getting gas into its oil. I bought the quad 100% stock except for a yoshi slip on exhaust. I have added a k and n air filter and have rejetted with a dynojet kit. The quad ran great, until I noticed an oil leak by the sproket. I replaced the seal behind it and all was good until my oil suddenly got full. I changed oil and cleaned out carbs thinking dirt may be causing them to leak. Now my oil is full of gas again. So what is wrong? I always shut off the petcock. I am stumped. Please help!