I installed my spare engine with new rings and gaskets on my '77 Motobecane tonight. When I first tried starting her up, I had nothing. No engine starting noises whatseover. I then checked for spark, but couldn't see any, so I cleaned up the points. I also installed a cleaned up spark plug (not new). I checked for fuel flow and it was OK. This time I got a spark and tried to start her up again. The engine did make some turning over type noises, pops, etc., but nothing that was sustainable. The throttle had no effect on turning the engine over. After a few attempts, it wouldn't make any kind of starting up noises until I pulled and cleaned the plug. The plug would be covered with gas.
Where should I look now? This engine had not been run in several years. The points had a lot of white powdery residue on them before I cleaned them up. I have not yet attempted to adjust the timing. I do not have a compression gauge, so I couldn't check for low compression. I just had the cylinder honed and new rings installed.
Please help me avoid using the sledge hammer on this bike.