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We are trying to hook up the Tach in our 1979 Johnson 115hp motor... there are 3 wires that come out of the back of the tach and i'm not sure where they all go to...Can anyone please help we are about to go out to the lake and just got a new prop and want to make sure it running right. also...
We use our fishing and ski (17' boat with a 115HP Johnson 1979 motor) for tubing should i get a higher pitch 21 for get up and go or a lower 17P for get up and go? I know i have to have a 13 spline 13to 14" diameter to fit my boat but i'm trying to figure out the pitch....
We have a 1979 Johnson motor that has been boared over (not sure how to spell it) and we use it for tubing, and fishing. We need a new prop and i'm not sure what to buy. How do i find out what will work best for us. It's a 17' boat Tri-Haul. our speedometer doesn't work so i can't tell you all...