Re: Trouble shooting the bicycle engine that won't start
I'd guess your motor is full of fuel. If you can start it, feather the throttle up & down to keep it running for a few minutes and it will clear on its own (you'll see LOTS of smoke at the muffler). If you can't start it, then take out the plug and pedal around with clutch engaged to pump all the fuel out the plug hole (keep spark plug & wire away from that area while doing this).
Sometimes I sets and thinks, sometimes I jes sets.