The recommended plug gap for the 1972 model, 20 hp Johnson outboard is .030 in.
Model number 65ESL73R would be a 1973 model, 65 hp Johnson outboard.
65373R is 1973 3cyl 65 hp evinrude/johnson
Champion L76V
It's a 1973 model.
Correct sparkplug is Champion RN14YC
I've run every outboard I've ever had at 50:1. Be sure to use oil rated for marine use. www.westmarine.com
the ball
The proper gap is .035
what does a 1991 mercury 150 outboard weigh
The impeller is located inside the water pump housing, on the topside of the gearcase. The gearcase will have to be removed in order to service it.
My 75 Johnson is 50:1. If you use a synthetic oil you won't need to worry about it and no more smoke from too much oil
The 1973 model, 7.5 hp Mercury outboard, requires 6.8 oz. of gear oil.