Motorcycle Questions? Ask a Mechanic.
Hi Angela, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.Initially, a little more background info please:
What was the burn color of the previous spark plug?
Sorry but black is not normal color as it would indicate overly rich, vacuum leak or even an ignition issue.
Expected would be brownish.
Unlikely for the reeds if the idle is good.
Proposed preliminary tries (if have not been done):