yea my rzr just started making this ticking sound a few weeks ago and it sounds like the valves are ticking...it gets louder and louder the faster i go and my rzr is cuttin out when i give it a good bit of gas...i checked the oil earlier and it looks fine...im gonna change it anyway though...im no expert with motors so i really dont know what it is... so if anybody could help me out i would really appreciate it