Today I found the grinding, slamming, sound upon starting is cased by the compensator .....this same thing happened Nineteen months ago...so from purchase to first compensator change was 18 months, now from then to now has been 19 months , and the dealer or HD customer service has NO idea what is causing the problem! I maintain there HAS to be a causeitive problem ...anyone had this before and if so what was it ??? By the way, up to now I have NO problem with the dealer !!!! Also, once in a blue moon, pushing the starter button has zero results............... Since buying bike in Feb. 2012 I am now on the second replacement of the compensator [2008 ultra]..Both have been badly worn and the engine , upon starting , hammered, banged , and knocked like heck!! Neither the dealer or H_D customer service offers any cause factors....just replace to the tune of hundreds of dollars!!!! First compensator lasted 18 months, the second one lasted 19 months and I don't think I should have to pay for new ones every 18-19 months....Has anyone had this problem and if so how was it resolved...Mine is a 2008 HD ultra classic with 52K miles on it.........Thanks!