Yes, I cleaned the carb (both jets) and the gas flows freely. It does get into the combustion chamber. Ive mixed the oil to the right ratio, and downloaded freds guide (ive gotten this far due to it), but im still stuck. One of my dads's friends (whos a mechanic) was over today, and he said theres no reason why it shouldnt run. He tested everything on it he could think of, pedalled like crazy up and down the street, but to no effect. Its really baffling. Thanks for all those suggestions. he did say, however, that maybe the spark wasnt "hot" enough. How would I go about checking this?