A little while back, I was given a dead Tomos Bullet. I have never messed around with mopeds before...
I have followed the first few steps on most of the on-line guides for moped repair. I took out the spark plug, and tested it, and when I back pedal the moped it sparks (however does not when I pedal forwards). The spark plug looks fine also, no buildup or anything...so I guess that's a check?
Next, I looked inside the cylinder and when I back pedal, I can see (and hear) the piston moving up and down (however, does not when I pedal forwards, but I assume that's normal?) That seems to be ok? Also, it won't backpedal easily with the spark plug back in place, but I assume that's normal as well?
So I guess the next possibility is fuel? No fuel is flowing properly? Is there anything I can do to discretely check for this? Fred's guide recommend squirting a little gas in, then trying to start it up? This guide (http://blizzard.rwic.und.edu/~nordlie/moped/repair.html) recommends spraying a little carb cleaner in... Any other possible methods? Should I be able to tell from just looking with the spark plug not in place or similar?
Also, there is a valve on the fuel line...I'm guessing it's a fuel cutoff, but does anyone know by default which way allows fuel to flow and which cuts it off (toggle goes from "up" to "down"). I tried both positions just to be thorough, and I have a hunch "up" is the proper position to allow fuel to flow?
Finally, the fuel in the moped is very old (around a year). I suppose I should drain it out and put in some fresh fuel? How should I drain the old fuel? Is there a hose or valve in particular?
Thanks for any help...I appreciate it a lot. :)