In anticipation of reinstalling my motor I made a priming tool last night. I cut the blade of a large flat screwdriver at its widest point and then rounded it off with a dremel to fit an old oil pump shaft I had laying around. Then I cut the handle off the screwdriver so it would fit in the drill. Slid the shank into a 3/8 drive 12mm-12pt socket and welded the socket to the shank. I took about 20 minutes and works perfectly. Thought this might come in handy for someone someday. Excuse the welds, my dog ate my helmet so I was shielding with my hand. I'll clean them up later.