2012 Yamaha Grizzly 300
Recently purchased a 2012 Grizzly 300 and noticed it was jerking and slipping while driving at any speed. Air filter is clean, gas is fresh, new spark plug, changed tranny oil, replaced the belt and it hasn’t changed. It’s worse when I’m going up a hill and now not driving until it’s been diagnosed. Also makes a slap noise like something is hitting the inside of a case when slips. Loose chain? Does anyone have any thoughts on next steps?