And clutch keeps completely burning up after 100 miles of riding.] This is the 3rd clutch that has burned up on me in the last month and a hald and the 2nd time air has came out of the left side of my 4 stroke. My other 4 stroke had this blowing air problem right before it seized up, also the clutch on that one broke aswell. Help )": I'm thinking the clutch burning up is due to a defective gear box because i took the old motors gear box and put it on my new motor. But Y is my new motor not Blowing air out of the left side?.