Purchased a 314-8 a week ago not every time, but a lot of the time it will reach a point where it will act like it is coming up on compression a does not want to turn over. If I continue to hit the starter it will eventually turn over and start. I pulled the battery out of my 312-8 so I know that it is good. Cleaned my connections, and finally wired direct from the battery to the starter with the same results. Any advice ? Thanks