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I took a good look this morning and did find that the Woodruff Keys that were on the motor originally are to small. They measure only 15 thousands and have tons of slop in the groove. I got a key with the new Flywheel and it measure 18 thousands and fit snug in both the upper and lower groove.
The rest of the taper not able to be seen looks much better than the side pictured.
I will buy another key and with that I think this issue may be solved. I will give it the proper torque. I like that this motor has a nut style nut for the Flywheel. I always have to use the big rubber hammer whack whack trick on the ones that don’t, so this one can be torqued to proper specs.