J
Jack Klarich
Guest
Here's a pic of a piston out of a 2010 flhr with only 5k miles. Swapped out for big bore last week. Seems to me that every engine i take apart has a decent amount of carbon/oil build up on them, High mileage or not.
Pretty nasty for 5k miles bet the pipes are sooty too wonder what oil was in that motor, seems to me with better oils and leaner engines we should not be seeing this unless we are having alot of ring and oil leakage past the valve seals IMO of building a lot of heads and lower ends