HELP!!!!!!!!!!! I have a 1979 Honda cx500 custom...It has 42,000 plus miles on it.....My problem is that after about 20 miles of riding.( or when it is good and hot ) It starts go bog down...I can hit the throttle and It will just bog...and stays about 5 thousand RPM...also If I am sitting still then this starts this...I can hit the throttle and it will do the same...then all of a sudden it will take hold and Rev up....It only does this when it seems to be hot...otherwise...it runs great until then.....I had a mechanic look at it...He changed the coils with good used ones and other things...and It ran great for about a year....Now it is doing the same thing...Can you help me?...I don't think its in the carb...I think its electrical....The first time it ever did it I blew a fuse...and I replaced it...then it started doing it from then on.....Thanks...Also where (if any) can you get NEW coils for this bike?