F Flathead Member Feb 11, 2016 #1 My plug is very black not oillyy. though bike has never run better Is this rich or lean . How do I correct this or should I?
My plug is very black not oillyy. though bike has never run better Is this rich or lean . How do I correct this or should I?
crassius Well-Known Member Feb 11, 2016 #2 could just be too many short trips during which the motor doesn't quite get up to full temp - why mess with it if you like the way it runs & obviously isn't too lean
could just be too many short trips during which the motor doesn't quite get up to full temp - why mess with it if you like the way it runs & obviously isn't too lean