Have replaced switch box, rectifier, stator, coil, wiring harness, coil to dist. wire., repaired control box wiring, removed and cleaned carbs, getting spark at #1, getting fuel, cannot get to start. Had removed flywheel to check stator, crank moved before FW reinstalled. What am I missing. Does the flywheel have to be installed in synq with TDC mark? I promise I'm holding my mouth just right. Help.