I´ve picked up a 1980 xs650 and have been working it over to get it up to speed giving it a little TLC where needed. I have one problem: the right cylender gets hotter than the left and fouls out after a short time. I´v adjusted the valves and had the carbs apart and cleaned all of the jets and everthing seems to be working ok. Anyone got any ideas what the problem could be? Thanks, Ross