there are 2 plastic tubes covering the water pump lines in the lower unit.. slide the tubes down so about 1/2 inch is still on the lines, line the other ends up with the pump holes and they guide them right into the pump.
The engine is a 1977 model
1977
it is a 1977 motor
The 1977 model, 70 hp Evinrude outboard requires an NGK BZ7HS-10, or a Champion QL77JC4 Plug gapped to .030 in.
The 1977 model, 140 hp Evinrude outboard, requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
The 1977 model, 200hp Evinrude outboard requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
Evinrude Model 10755a E = 1977 9.9HP Electric Start Outboard Motor
Model number 35702H, would be a 1977 year model Evinrude outboard.
50:1
The Gap is .030
The oil / fuel ratio for the 1977 model, 85 hp Evinrude outboard, is 50:1, roughly one pint of 2 cycle oil, to six gallons of fuel.
45 : 1