you know thats actually a very hard question to answer,so many factors involved, carb size, jetting, timing, mileage on motor, riding habits, all those play a key in gas mileage, so it is almost impossible to answer,, (peace)
I am going to have to go with every body else, yamaha makes a pretty clean triple, slow but clean LOL, but you have to remeber that in most cases the EFI sleds will run the cleanest, just beacause the computer will compensate for, temp, alt, and humidty. CATS 500 seem to run pretty clean, as far as smoke at startup and keeping a consitant plug through the season. SWRules
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