I need assistance on how to mount the engine on the fork. There's a mounting bracket attached to the engine and I have mounting parts left over (some appear to be duplicates) I picture would be helpful or a manual. Additionally, I need to know the correct oil/gas mixture. The bike shop where I got it said to use synthetic oil 50:1, but an instruction sheet I found in the box said (MS) S.A.E. 30 weight oil 24:1. All suggestions appreciated. Rick in Indiana P.S. I don't know if this is the correct posting site. Redirect me if needed.