hi ya again mystery pan hope i am in right place now. anyway plugs are blackish most of the time carb aint really been ajusted as the bike very standard still only done 15600 miles from new. started it up earlier and it was cough bang spluter. so cleaned old set of harley plugs up and just been out and its run fine ?

 

Okay???? What's the Q?

 

Hey bobhog, welcome to the EVO forum. Not everyone is gonna search for your original post on the touring site so you might want to kinda start over. As I understand you've checked/changed numerous things on your bike and it was running like crap. So you removed the new plugs and replaced them with the old after cleaning them. Now it seems to be working. So, as Hackd said, what's the question?

 

well the question is i have done this a few times and it could last a month ok or just a day then it plays up again ?

 

Pull the float bowl off the carb, spray some carb cleaner up into the carb, you could have some debris in the bowl that is getting between the needle and seat, causing the carb to overflow, causing an over rich condition.

 

How often do you take it out, and when you do, how long do you ride? Is the fuel fresh? What does it look like in the tank, can you see any rust? Are you running with a fuel filter and is it new? Is your enrichener not pushing back in all the way? Have to agree with Dan89, it seems to point to a carb/over rich condition. Besides debris you could have some varnish in there as well.

 

cheers for that mate i will try it again but it has been done not to long back.ihave tried a number of thingsand i do think its somethink to do with the carb

 

no im not runnin fuel fillter . can. see any rust in the tank.i use it every day even in winter . but the time i spend on can be between half hour to three or four hours. do you think maybe an after market carb ?

 

How clean is the air filter?? Was there any work done on it before it started acting up? Try a NEW set of Autolites, and are the plugs dry or wet when they start acting up??
After you answer these then we can evaluate the problem a little better and be able to ask better questions. Hope this helps.

 

the plugs are dry but black and sooty not really done anything to it before it started to play up