I buttoned up my JT motor today and it manually shifts thru all the gears so I’m pretty sure my shifting issue was the damaged boss on the shift drum stopper. And I swapped out the hollow shift drum for the solid shift drum. That should eliminate the stopper pin problem which ultimately caused the damage to the boss.

And the new bearings resolved the slop I had at the flywheel. I had a hard time inserting the bearings with the heat / freeze method. They just wouldn’t drop in like all the videos I’ve watched. So I made a bearing puller and it worked fine. My son had the TUSK crank tool which pulled the crank into the bearings perfectly.

Tomorrow it goes back in the frame!