Hi guys,
I bought a used motorized bicycle and it's been nothing but trouble. From what I was told it is a "80cc" RAW 2-stroke engine kit (though I know apparently the actual CC's are less). I never had one of these things before so at first it kept dying on me, but once I got the hang of it (or so I thought), it seemed to work OK. Then it started dying on me (one and off) again.
I removed the spark plug (thinking maybe it was going bad) but couldn't find a replacement; then I put it back in and it hasn't been working since. It seems like the engine is turning but it wont fire up. On top of that somehow my electrical (which the guy before me had wired precariously) had come apart so I put it back together based on the wiring diagram circulating online (black to black, blue to blue, with green spliced into black and red/yellow spliced into blue).
So now I really can't tell what's going on. Did I somehow mis-wire something (I checked and it seems to be OK), is the spark plug not inserted correctly (how can I be sure if it is?) or is the engine flooded? Essentially, when I try to start it, I can't tell what the problem may be of those three things. Also, the fuel line seems to not be letting fuel through sometimes (as if there were a vacuum).
Can anybody suggest a systematic way for me to be sure which of those things work/don't work so that I can isolate the problem?
Thanks a lot, any input would be greatly appreciated!
-Tom
I bought a used motorized bicycle and it's been nothing but trouble. From what I was told it is a "80cc" RAW 2-stroke engine kit (though I know apparently the actual CC's are less). I never had one of these things before so at first it kept dying on me, but once I got the hang of it (or so I thought), it seemed to work OK. Then it started dying on me (one and off) again.
I removed the spark plug (thinking maybe it was going bad) but couldn't find a replacement; then I put it back in and it hasn't been working since. It seems like the engine is turning but it wont fire up. On top of that somehow my electrical (which the guy before me had wired precariously) had come apart so I put it back together based on the wiring diagram circulating online (black to black, blue to blue, with green spliced into black and red/yellow spliced into blue).
So now I really can't tell what's going on. Did I somehow mis-wire something (I checked and it seems to be OK), is the spark plug not inserted correctly (how can I be sure if it is?) or is the engine flooded? Essentially, when I try to start it, I can't tell what the problem may be of those three things. Also, the fuel line seems to not be letting fuel through sometimes (as if there were a vacuum).
Can anybody suggest a systematic way for me to be sure which of those things work/don't work so that I can isolate the problem?
Thanks a lot, any input would be greatly appreciated!
-Tom