"I got a Jawa 210 moped in not so working condition for free, and bought a mechanics manual for it and a couple of parts that needed to be replaced and got the moped up to what would seem working order, or at least drivable.....I have a solid spark and fuel is making it to the piston compartment....but it wont start....help me. Here are some pecualiar things I dont quite understand, maybe you can diagnos the problem. For now I took off the small black cover from the carbuerator, It connects to the frame of the bike and acts as the air filter, when I am peddleing the moped and I try throttling the handle, gas comes spraying out of the air intake of the carbuerator. And does the spark plug have to fire off every second or so like on a car or should it be a strong continuos spark? PLEASE HELP!!! THANX"