Neat Job & Clever Idea! Congrats! What are you using for prop shaft spacer? Is prop mounted on orig crankshaft extension? Did you make your own mounting plate? I have a Sears/(Poulon?) 24 cc blower. The rear engine cover is a metal casting w/ 2 round lugs to engage rubber insulators to mount it to the plastic housing. Did you have plane your rear cover flat to fit your mounting plate? Thank you.