So I have a 2013 grizzly 550, bought it brand new and has 3600 miles on it. Itâ€™s a great machine, only problem so far the rectifier went bad and normal wear and tear, new axles and tires, and regular maintenance. This past time on the trail, it started running rough like starving for fuel or something. I read somewhere that the gasoline loses octane when it gets hot. I opened the cap at the time, and was like a heater was on in there. I had plenty of fuel, and when I got home rode a around for a while no issues. Iâ€™ve always put a oil change kit which includes spark plug oil, filter, and air filter. Any suggestions?