I'm replacing my top end after a jammed piston. Getting the broken metal out of my motor after the wrist pin broke scratched this part. It still seems to circle smooth. I should be fine eh?
If you run the right amount of oil, an right a/f mix, these engines last a really long time. Them guys running very little oil are losing easily had power, and engine longevity. When you crack the jug and pull it off, the crank should have a nice layer of oil all over it. If it is dry, you're not running enough oil in your mix. If you use the bean juice, it will help save the day someday when you go lean from a clogged filter or jet, etc. I mix my own blend of top secret ingredients. I would never tell anyone I use 1-1.5 ounces of castor with 1.5-2 of lucas, ever, it's my top secret mix that keeps my engines going a long time. Sometimes I go heavier on the oil, just depends on how I plan to ride that day.