What could be possible reasons that one of the four cylinders (the left or first one) is not working? It was working before, than it did not, then it did again and now not again. I was able to start the bike, but only the other 3 cylinders were firing, after driving few hundred meters, the bike went out. I guess it was flooding.
This is what I considered so far (updated list):
- spark plugs (OK)
- cable to the spark plugs (OK)
- it is not wet in the corresponding slot for the spark plug
- there is a spark
- after cleaning the gas cap it works again. Maybe there was too little air going through, such that low pressure in the tank prevented that enough gas was used. I am not sure though, if this really solved the problem.
- I could imagine that the gas petcock is not perfectly working
I know it may be a problem with the carburetor, but I have no idea what to check for.
(apologies for bad language, this is not my standard vocabulary)