Too late the engine is gone. I tore them both down and tossed them. The piston was covered with hard carbon deposits. Just in passing. I decided to drop the project and move on to a different system.

To be honest the purpose was to build a bike for retired people. That engine system would have been too much for them to start and keep operational. I'm going back to electric I think. I still want to build an inexpensive motor assisted bike for seniors. I'm rethinking electric motors.

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