I could probably plug the air intake as well... but now I'm imagining rubber corks getting sucked into the engine...
Maybe I'm just a fat, ham-fisted, suburbanite, and I should be happy with 60mpg? I just thought flogging it I should get 70, and milking it i'd get 90mpg.
I'm going to spend more time inspecting my drive train (belt) and looking over the ignition end of things.
Next time I have the carb off, I'll see if I can do the bystarter check as prescribed by the manual, but I'm not really sure how I'm going to draw a vacuum on that little hole that's 0.2mm in diameter on the engine side of the carb.
1986 CH150D - 1982 GS1100E - 1977 TT400 - 2004 TTR150 - 2005 CRF250X