I get about 140+ to a gal, my truck get 6.5 to a gal,so I dont need to save any more gas,but I have found out that on my bike whan I changed out the 5mm plug wire that came with the cdi to a larger automotive 8mm wire and silaconed both ends on that the bike ran alot better. also try a hotter plug.....now on mine bent the arm down and cut and spread the ends to make a redneck splitfire plug works great