Jim Brierley
Well-known member
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Tried to post pic but failed, I had a good look at the magneto and you are right about the reduction drive, the rotor button itself is geared and drives off the main shaft 2:1.
And yes, I’ll be using a steel crank gear. The are obviously designed to run at crank speed and can handle the revs.[/QUOTE]
Are you going to race an A/B engine? Where, and what kind of head? Just curious.