disable autooil system

[Mike Mercer]

I have a 1992 yamaha 70 hp that has auto oil mix that is mal functioning and I wantto pre mix and need to bypass the computer stall.

[boats.net]

Would have to remove oil pump and oil pump drive shaft but don't know of a block off plate available for a 70hp to cover and seal hole in block, one from a C75 model might work.