Scubaproh20
Seaman
- Joined
- Aug 30, 2010
- Messages
- 57
I am building a jet boat out of my 14' boat and am using a yamaha jet pump, still gotta decide what motor to use but this i know I needa complete motor pipes carbs mounting plate etc. I want 100hp minimum so far im looking at sea doo 787 and yamaha 800. my current problem is I cannot figure out if the pto couplings are threaded tapered or both and which ones will share a common pto coupling to my 1998 yamaha gp800 pump.