Just wanted to thank the tech section on their information on tank removal.  My bike wouldn't start and after getting a new spark plug I removed tank as per directions with aid of my Clymers and it went smoothly.  My used 86 with 11,000 miles on it had previously someone monkey wrench the carb and my mechanic put it back together with new jets but is waiting for a "flow tube" which she had to glue back together.  This repair improved my bike's running but it did eventually lightly carbon my spark plug and thereby stop it running.
My question is "What is a flow tube?" and any suggestions on how i can stop the plug from getting carboned up?

No idea what a flow tube is.
Re; Carbon, maybe jetted too rich. What jet is it? What exhaust? What intake mods are done?

twenty bux says the mechanic cranked the carb out to the side and tore the airbox -> carb boot.  I got a bit of a tear on mine when I did the same.  Mohawk Quickshot is the best glue to use for that kinda stuff.