Four bolts and the engine was out. Not as heavy as I expected. Bought a second 12V battery and ran the motor at 24V. Chain keeps coming off but it is definitely happening on the master link where I shortened the chain. I didn’t use a proper chain cutter tool, just a hammer and punch, so I might have bent something a bit. Put some oil on it and it seems better.

Looked at the new foot pedal. Not sure I like it. I may just buy another controller like the one I have. I suppose having the throttle on a knob is ok since I have brakes that seem to be working well, and a brake switch that cuts off the motor ought to make this ok. Actually, the original throttle was on the dash.