Re: carb rebuilding
Don't know how much the mechanics charge but it isn't difficult. The carbs themselves are very simple and a rebuild kit costs ~$15-20 a carb I think. You need a manual to help with the removal of the ancilliary equipment (oil tank, throttle linkages, etc.) to get the carbs off. You can do it in about 4 hours if you have the parts and a manual and you don't get hung up on a frozen bolt or something. If you do attempt it, dismantle the carbs completely, remove the jets, and the float valves, clean the jets and all orifices thoroughly with commercial carb cleaner and compressed air, and install the rebuild kit parts (float valve, o-rings, gaskets).