That was a thought of ours, but the teeth are a pecuiliar shape, not what i'd expect for driving off another gear, in a perpendicular or parallel orientation.
The shape of these would suggest that the (possible) mating gear teeth would have a buttress form (a sort of castlated shape), perhaps looking more like a ABS sensor ring off a modern car.
Plenty more conundorums to overcome yet with this project, for instance the Bowden Carb, which seems to be a clever blend of throttle body, & conventional Carburettor. I'll try and add some piccies in a few days of the speedo drive to see what people think.
Phil
