Hi everyone; I managed to fit the engine within the bicycle frame, but clearance between engine and frame cross bar isn't adequate to fit the carburetor. I have made an offset intake tube to allow the carburetor to sit outside the bike frame (see attached pictures). I used a 45 degree copper pipe elbow and a 1/2" piece of copper straight pipe to re-position the carburetor. The pipe pieces are held together with small segments of vinyl hose, held tightly to the copper via hose clamps. I tried unsuccessfully to get the engine to start, but haven't done any troubleshooting yet. I'm wondering if anyone else has had this problem, and if there's a better intake solution. I'm concerned that my current intake tube is so long that fuel will not stay atomized in the air long enough to reach the engine. Even after hitting the primer till gas dripped from the air filter, I couldn't get the engine to kick over. Thanks!