So with that being said, I like doing my own maintance. With the M109R everyone knows its shaft driven. Is there any kinda of maintence for shaft driven motorcyes? Also I have a possible exhaust leak but i cant seem to figure it out. Ever since i bought the bike 3 weeks ago ( 2014 , 24k miles fyi) it has a exsesive valve / ear perferating noise at idle. I replaced both exhaust header pipe gaskets thinking that was the problem and its either the same as it was before or slightly worse I cant tell. Any recomendations? Lastly I want to race/drag this bike for fun. With that being said Im going to do my brakes, pads , rotors , lines and fluid. So any tips on how to bleed the system and not make a mess considering the bleeder is at the top of the caliper?