finding TDC

What does the punch mark (to tell you what TDC is) on the flywheel look like? It looks like there are several marks on it.

On the YZF's, there are 3 marks at 11:58, 11:59, and 12:00 on an imaginary clock face. The one at 12:00 is TDC. The other two are for checking the timing with a strobe light.

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