Hi can someone help me out my engine is running too rich on my fatboy theres a fair bit of black smoke coming out the exhaust how do i change it?thankyou
If you don't have enough mechanical knowledge to know what a jet is, then opening up a carb to ascertain the jet sizes or how to trouble shoot a problem would take the rest of eternity to explain for you so you could check things over and it would prove to be a very costly endeavor for you when you do some damage.
Glider is talking about the HD Factory Service Manual that covers you bike model and year. This is not an after market manual or the Owners Manual.
Once you have the manual, turn to the Carburetor section of the Fuel System part of the manual. Read that section twice before trying anything. Simple to work on these CV carbs, but not flying blind.