2000 Harley Davidson FXST Softail Standard "spark plug black soot cutting" Questions

...black soot comes out of the pipes, and it still will not fire. Plugs used were autolites, instead of split fire as I originally ran. Is my spark not hot enough. I have run out of ideas please advize. ...

spark plug black not much spark wont start like no petrol getting in engine carby all good firstly cutting out then start no problem now wont start Sounds like it is running too rich therefore causing

...spark Assuming it ran well before you installed new plugs, it sounds as if you installed plugs with an improper heat range. Black sooted up plugs indicates a too rich fuel mixture. If you have the ...

...spark plugs in a motorcycle need to be changed? There are several things that could hint at bad plugs. - Hard starting. - Slight to severe hesitation when you give the bike some throttle. - Stalling, ...

...would be appreciated. It seems there is too much of fuel going into the non firing cylinder thus the blackish spark plug, recheck the float level to that carburater and also check the valve

spark plug on it when it was running ok just to see how much of an sprk it had. Running on one cylinder the coil will jump a one-inch gap easy. Some times it quits and after setting a bit it may run a