yep!......and in theory is 'off' which is ok if you're on standard exhausts and air filter configurations. Owners with standard set ups still use the device to richen the F/A mixture to gain smoother fueling / feel on the throttle. It offers zero performance improvements though. Nada BHP increase, just more responsive on the throttle, especially when combined with the 02 device, but still zero extra bhp until other hardware is fitted.

Owners with free breathing exhausts and air filter/s need to have a richer fuel mix to help prevent lean running induced by these set ups which would overheat a piston crown.

Maybe your previous owner had after market pipes and filters and put the bike back to stock when they sold it and returned the dial to 'off'. Or maybe they just bought the device anyway, regardless of any set ups.

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I have a lot of growing up to do. I realized that the other day inside my fort.