I have been following this thread for a while and thinking about what I have done........and after carefull consideration I think the number one reliability fix is a clean air and fuel filter. So, regular tuneups where oil/air/fuel filter changes are performed. Keep a points file on-board seems to help in between points replacement every 5000 miles or so. One reliability improvement I just discovered was to clean out the muffler/silencer using both detergent (brand name Simple-Green) and some caustic soda mix drain cleaner (brand name "Zep"). At about 24000 miles the bike started using oil, and I assume that this unburned oil was collecting in the muffler/silencer. Anyway, after I first used the Simple Green detergent in the exhaust for 24 hrs, I then washed out the detergent. After letting carefully poured the caustic mix in muffler/silencer (first I put on a rain coat, rubber gloves, full face eye shield) and let the caustic solution sit for about an hour, a large amount of carbon was dislodged from the silencer. If you try this, please use extra caution, add the caustic to water, not water to caustic as it will boil and splash the caustic into your eyes causing blindness. The spent caustic is still dangerous after use so you need a good place to dispose of spent solution. Use of the spent caustic as a drain cleaner would probably work provided you still use the protective equipment.
To make along story short, my starting and performance improved 30% after opening up the exhaust, it now runs like a new machine.