Woke Harley-Davidson keeps building weaker and weaker Motors the Evolution motor was the best motor they ever made they had to get rid of it because it was too good their service mechanics had no work to do so now they build stuff that's built in redundancy just like the cam shoes that you said needed to be replaced the adjusters they're junk you got a tear them apart of 50,000 Mi for a place unless you do the Gear Drive a high-volume oil pump you might as well go with the big jug kit at that point too