Hi !
I see your Italian engine and pipe. Congrats!
I have Italian SG Racing 35 cc engine and its comes without any doc's, paper and recommendations.
Several facts I know now.
CMB engines are needs run-in:
6% oil with high octane gas - 1 hour summary. that's all.
Engines new parst piston and sleeve are tight. Its normal.
Usually run - 5% synt oil, high octane gas.
My friend use a 35 CMB.
Hands assembled Italian engines good works with sport gas like V-POWER, ect.
With pipe fixing - I can just suggest to do 2 C-shape clamps with screw, analog of B.H.Hanson pipe stopper.
Good luck!
[img] [img]http://www.modelgasboats.com/media/kunena/attachments/legacy/images/clamps.jpg[/img]