The motor will fit, but the carb will not fit in the normal way.
I am turning my carb 90 degrees to the left with a 1/2" copper plumbing elbow after I trimmed the horizontal leg off the manifold. I discovered a simple way to bore the manifold out using a Harbor Freight sanding cone. It allows you to step up the interior diameter very easily. Lots of aluminum dust, but it works. I am going to tin the copper elbow with solder to reduce the galvanic corrosion issue, use a set screw and lots of RTV. I will get some pictures this weekend of the set up.
Note that in this picture I am not using the back mount. I am in the process of sanding a half round channel into the actual frame of the motor, so the tube will have more surface area to clamp and rest on.
I have also removed the front derailer, as the motor was going to block it from going into the large gear. I am modding the grip shift so the left grip shift will control the rear derailer and I can put the throttle on the right.
Andy-