G'day PR. Jerry is right about which side of the chain run to tension. But you might consider hanging the tensioner from the seat stay. Dynamically it is ideal. Chain stay mounting are wont to slip into the spokes. Thrilling on a good day.
Spring coming Down Under.
I hear with these Choppers that because the chain is so long that it needs to be held up around the bottom of the rear sprocket with a chain tensioner (like in that pic I showed you)
or the chain likes to fall off alot.
We'll, you got the pic to help ya do it if need be.