A 50 hp Mercury outboard, serial number 2106993 is a 1967 year model.
How do you change the oil in a 1967 3Hp Evin-rude outboard motor?
the motor is a 1967 outboard
As best as I can recall, the propeller used on the 1967 model, 50 hp Mercury, was of a splined design. If there are splines on the engine propshaft, then no shear pin is used.
.020
Mercury outboards, 1966 and up, require a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
The maker points in a 1967 model, 110 Mercury outboard, are gapped to .020 in.
A 9.8hp Mercury outboard, serial number 2143520 would be a 1967 year model.
The Thunderbolt ignition is a 12 volt system.
1967
A 50 hp Mercury outboard, serial number 2159844, would be a 1967 year model.
I believe these were made in 1966 and 1967 only. 1966 serial numbers start at 1869776 1967 serial numbers start at 2097280 also look at oldmerc.com