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  1. S

    Mercury Switch?

    I have a 1975 65hp Merc. There is a Mercury Switch comming off the switch box. The manuel does not mention what this is. Does anybody know what this is and what does it do. Just wondering.
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    Over 7,000 RPM's

    Just hooked up tach to a 1975 65HP Merc. on a 16 bow rider (1975 Tempest). I put signal setting to 6 pulses. I am registering about 1000 RPM's when I am idleing. But WOT I am off the scale (7000 RPM) which only goes up to 6000 RPM's.Right now I am registering about 28 mph.<br /><br />Can this be...
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    90 hp stalls when tilted.

    Friend has a 90hp, unsure of the year. Motor runs fine until he starts tilting motor to come in or out of dock. As far as I know carbs (3) have been redone. If I sit by motor and pump the ball it starts running fine for a minute then starts stalling. No kinks in fuel line that I can see. Any...
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    Mercury Manual

    I bought the Merc. Manual 40hp to 110hp 3 & 4 cyl. 1969 to 1992. Problem is my motor is not in there. I have a 65hp serial # 4268800. I think the year is 1975. I figure this out by looking other sites. My wiring diagrams are not in this manual, they really to not mention my motor at all. They...
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    I,m scared!!!!!

    I have a 65hp Merc. serial # 4268800. I believe it is a 1975 with Type III ignition. My boat is the only one that has ran perfectly this year but I want to hook up my tach. I have a manual and have been reviewing all of your posts for hook up, but I want to be sure.<br />My wire identification...
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    65hp Merc. and Tach

    I have a manuel and have downloaded tach instructions.<br /><br />I connected my tach and have power and ground. What I do not have is a signal. My question is:<br /><br />1. If I have a gray wire in my harness how will I know if hooked up to either rectifier or alternator? Am I looking for a...
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