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  1. J

    Tohatsu cross reference

    Hi folks, I have an unmarked motor, identified through its serial number as a Mercury Mariner 4/5 sn #09852794 mod #1004211rb year 1995. I'm hoping to cross refer to a Tohatsu power head. Does anyone have the information? Right now, I'm very keen to get a spark plug number for it, and then a...
  2. J

    Exhaust gas routes BF9.9

    Hi folks, I've got a 9.9, circa 2003. It's a long shaft, (too long actually) mounted in a well. I only see exhaust gas going through the prop hub at around half throttle or more in forward gear. At idle, or in reverse, I get no gas through the hub. I guess that is because the leg is full of...
  3. J

    Diagnostic tricks for small motor

    Hi Folks, I posted this on the Mercury/Mariner area, and the suggestion was this might actually be a Tohatsu make. So with apologies, I'm re-posting... I have an unmarked motor, identified through its serial number as a Mercury Mariner 4/5 sn #09852794 mod #1004211rb year 1995. It used to be...
  4. J

    Diagnostic tricks

    Hi Folks, I have an unmarked motor, identified through its serial number as a Mercury Mariner 4/5 sn #09852794 mod #1004211rb year 1995. It used to be on the back of a safety boat at a club many seasons ago. The motor says 'made in USA', and has a Keihin carb. It was starting well, but not...
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