My bike is a Commando w/ fibreglass tank.
I have found that the mogas / ethanol blend being used in the US is causing problems in my carbs - a fouling on the needles which I believe is some sort of resin being leached out of the tank.
After draining the tank and using 100 LL avgas - no problem.
Two questions:
1) Is there any problem using 100% avgas?
2) what is the best tank coating system to combat the ethanol?
thx