1988
The spark plugs on a 1988 model, 70hp Johnson outboard, should be gapped to .030in.
23 years old made in 1988
The fuel to oil ratio for a 1988 model, 8hp Johnson outboard, would be 50:1, six gallons of fuel, to one pint of two cycle oil.
An 8 hp Johnson outboard, model number J8RCCS, would be a 1988 year model.
Johnson model number J10RCCD, is a 1988 year model, 9.9 hp outboard.
50:1 i have a 1988 johnson 88 spl thats what i run and it runs sweet
Model number J20ELCCA is a 20 hp Johnson outboard, electric start, long shaft, 1988 model, outboard engine.
0.035 is the gap size
Evinrude did not produce the 115 hp outboard in 1989. They did however, resume production of the 115 in 1990, weighing in at 335 lbs.
The 1988 model, 28hp Johnson outboard, requires a 50:1 fuel to oil ratio. This is roughly, one pint of 2 cycle oil, to six gallons of fuel. If you have the same motor I have which is a 1988 Johnson 28 hp 2 stroke then the mixture is 100:1. The answer provided above is wrong. This is 8 ounces of 2 stroke oil to 6 gallons of gas. I have had this motor since it was new and it still runs great today.
just stay with the 50 to 1 ratio and you can't go wrong.