Bonneville America Forums Forums Technical Forums General Tech mpg

When I put on my SS pipes with baffles removed, I got 200 miles to a tank on the Hwy. BUT...this was before I rejetted and shimmed up the carbs. Of course the bike was running lean and a bit warmer, but it was only 50 degrees outside so I didnt mind. Now that the bike is jetted/shimmed up right, I get 140-150 mpg. BE CAREFUL running those pipes without rejetting, especially if it is hot outside or you are running in stop and go traffic.