Capt’n,

Your prop adaptor looks good. Thanks for the very good explanation. Unfortunately I don’t have a lathe and am looking through my collection of stuff to find something that might work.

For what it is worth the original blower weight is 8# 4oz. After parts removal the engine weights 4# 4oz with muffler, pull start, and no trimming. The muffler weights a half-pound.

The exhaust opening on a ST 2000 muffler to engine mount is identical. For experimentation with mufflers or pipes an adaptor plate could be made.

Bill