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    1978 70 hp poor speed/power--need wiring diagram of switch box

    I am having a problem with my 1978 70 hp merc that sounds similar an earlier posting. I bought it "as is" for a 16.5' sylvan fiberglass bowrider. I checked the compression and all cylinders were ~165psi. I first had no power and very poor runability and I was afraid it was just too small for the...
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    1979 70hp no-power need wiring diagram of switch box

    I am having a problem with my 1978 70 hp merc that sounds similar an earlier posting. I bought it "as is" for a 16.5' sylvan fiberglass bowrider. I checked the compression and all cylinders were ~165psi. I first had no power and very poor runability and I was afraid it was just too small for the...
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    1978-70hp control switch wiring diagram needed

    I am installing a used 1978 70hp motor and controls on my boat and had to change cables as the ones that came with it are too short. I found the wires cut to the chock button and a few extra wires. The switch has been changed and the wires don't match up color wise. The motor does start and run...
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