So just had my first short ride on my Tnytro. Man that engine is strong. Had to tow my 1100T Arctic Cat out with it, lol. There is some rattle noises coming from the clutch side of the engine. Seems like sheet aluminum or maybe the clutches or maybe noise from the cam. My son thought is was exhaust leak noise. Is this noise normal or do I need to look for a source? Sled ran really strong, towed like a tractor but I am concerned.