I think I see it now. VERY NICE! Nice job indeed!
I hope you don't mind my input.
I just love how you did all that particularly how you tackled the carburetor.
Just an insight that's all
but if you flipped the intake manifold over so the carburetor is on the left then you can finagle with the choke while your right hand is on the throttle!
I originally wanted a China engine on my schwinn (cronus). If you look at my frame is pretty much the same geometry. I never tried to do it when I got my engine and instead bought another bike. The Titan is on it now.