Quote:
Originally Posted by OptimusI
............. Depending on where it's measured you will get different results, the outer edge of the fly wheel will be moving at a very different speed from the bolt head of the pto pulley. So where does one measure?
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It will be the same anywhere, I promise. Yes they are moving at different speeds, but they are all making the same number of revolutions per minute (rpm). I assume you have an optical tach? Put a reflector on something that is easy to get to like the pto pulley.
Bill