Re: Magneto Flywheel to Crank Key Slot

Rebel Moby /
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The key is more for alignment than holding power, taper fit is more than sufficient to hold the flywheel in position. Lap the tapers if it it damaged, you need at least 1/3 width contact to secure the flywheel's position. When you assemble align the flywheel to the crankshaft as best as you can and torque that nut well.

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