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  1. kjspylite

    How to make a DVA adapter - links to multiple designs

    I thought I'd make a thread that consolidates all the "how-to-make-a-DVA-tester" threads so people can find them easily. http://forums.iboats.com/showthread.php?t=374544 http://forums.iboats.com/showthread.php?t=434738 http://forums.iboats.com/showthread.php?t=371144
  2. kjspylite

    1989 Mariner 75 HP 3 Cyl - bogging no acceleration believe its a spark issue

    1989 Mariner 75 HP 3 cylinder serial # 0C167888 compression within 7 PSI on all 3 Motor starts great and idles fine. Both in the water and on the muffs. My motor is bogging under load. It has no acceleartion....zero. Just barely above idle speed. Sounds like its missing. I think I'm...
  3. kjspylite

    Poppet valve diaphragm water in cowl 1989 Mariner 75 HP 3 cyl

    Thought I would try to contribute something helpful to the forum instead of asking questions. I was having water leak in the cowl coming from the hole on the cylinder cover that houses the thermostat and poppet valve. I took a couple of pictures so if anyone else is having this problem, they...
  4. kjspylite

    Question for DVA testing experts - no acceleration, motor bogs

    motor: 1989 Mariner 75 HP 3 cyl. clean carbs, compression is good, timing is good, idle mixture screws 1.5 turns out I am trying to diagnose a bogging, no accelerration problem. Idles fine and revs fine on muffs. Idles fine in water, but has zero acceleration. It will only move forward at...
  5. kjspylite

    short intermittant white smoke from prop exhaust

    1989 Mariner 75 HP 3 cylinder Serial # 0C167888 Compression was perfect: 120 across all three After fixing my spark issue, I finally got the motor to run. It started immediately and idled pretty good. Not perfect, but far from rough. Maybe a small hiccup or two everynow and then. And it...
  6. kjspylite

    Trim motor and pump left off exposing trim system to weather

    1989 Mariner 75 HP 3 cylinder Serial # starts with 0CXXXXXX (thats all I can remember) Trim system: Design 1 side fill When I purchased the motor it did not have the trim motor/pump installed. The owner said the motor was bad and was going to replace it but never got around to it. This left...
  7. kjspylite

    1989 Mariner 75 HP 3 cyl - Spark on only 1 cylinder

    1989 Mariner 75 HP 3 cyclinder I have an OEM repair manual but am having trouble diagnosing my problem. I am only getting spark on the top (#1) cylinder. I was thinking it was the trigger so I checked Ohms. Did not get a reading on any of the coils (brown, white, violet to white/black)...
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