Re: what did you do to your motor bike today?
1/4 turn in is not that much while idling (it does not make much power idling in the first place). If I had to crank the idle in multiple full turns, THAT would be drawing noticeable power. Whether I ride with or without lights, it performs the same. It will haul me and my loaded bike (310lbs total) up a pretty steep incline at 28mph. I've even used resistor spark plugs without much difference. Maybe I have an abnormally powerful magneto or something. I've noticed it doesn't reduce spark much until you draw over .5 watts on the white wire, and my lighting uses about .3 watts.