The last listing I have on an in-line six, 115 Merc, is the 1986 year model. The dry weight is listed at 315lbs, this is with integral trim. I would think the 1976 model a little lighter at 290-300lbs, due to having external trim system.
The dry weight of an 1990 model, 115 Mercury outboard is 326 lbs.
red
Not sure of 1970, but I have a 1983 and it weighs 365 lbs. That's probably pretty close
50:1
all mercury outboards mix 50:1
A 115hp Mercury outboard boat motor has a fuel to oil ratio of 50 to 1. This translates to 16 ounces of 2-cycle oil to every 6 gallons of fuel.
1995
How much doe a 1997 2 stroke johnson outboard motor weigh
The 1979 - 1980 model, 115 hp Mercury outboard, requires a 50:1 ratio. One pint of 2 cycle oil, to six gallons of fuel.
50 to 1
50 to 1
.040