Alister,
What Peter said is correct. After you crack the nut it does become hand tight for approx 3/4 of a turn. You just simply keep turning with the device you started with. Just one hint though, when you assemble every thing back together dont over tighten the cranking device ie kick start or rope pull. I did this and at a later date removed the rope start and it brought the flywheel with it. A real cow to get off then. Give me a bell if you have any trouble.
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