If you havn't done the cam mod yet stop waiting! I am one of those guys whose maint. would make you sick. I ride the hell out of my bike, dont change the oil nearly enough, and havn't cleaned the filter in at least 4 tanks of gas and the bike starts 1st kick literally at least 9 out of 10 times. I havn't changed the plug since I did the mod and it looks like new ( i'm assuming this may be unrelated except for the valves were out of specs). I can't tell you how much more enjoyable the bike is with this simple mod. And more power to boot!!!!