Ok, George and dragray covered the most obvious thing, what I have to say refers to your chain. Shorten that sucker up; it's a disaster waiting to happen The upper tensioner is a bad idea, all the torque of the motor will be trying to twist the tensioner mount on the frame. Plus the chain will strech a lot. I had to eventually remove two links but in the end after the last link was removed I didn't need the tensioner at all, the best situation. If you can shorten it up that much right now I'd still run the lower tensioner, you're going to need it for when the chain does strech.