Ive got 37K on my 99 Road King, I bought it last year. Its got the 1450cc Twin Cam engine. My local Harley Dealer warned me its best to pull the Valve covers and inspect the cam (chain?) tensioners, since they can be trouble at the mileage I'm at. He will do it for $110 and advise me if more work is needed from there. Ive read these can blow up in your face, so probably not a bad idea, but Im wondering if this is something I can do myself? What does a worn tensioner look like? Can you upgrade to something better without spending a fortune? Thanks for the input, Ive got plenty of wrenches and know how to use them, but its my first Harley.