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  1. pvanv

    2012 Tohatsu 30hp 2-stroke jet bogging at WOT

    As I mentioned on that other forum, a leaky o-ring in the fuel line could cause that.
  2. pvanv

    2004 Tohatsu 90hp tldi error code 7000 and the battery light

    You need gauges to dx air pressure.
  3. pvanv

    2004 Tohatsu 90hp tldi error code 7000 and the battery light

    So it ran fine until you changed plugs? What the heck is a top float bolt? Gauges go on the schraeder valves on the fuel and air rails.
  4. pvanv

    Tohatsu 9.9D2 after wrong modification?

    The 3M3 is also used with the bigger carb to get 18 hp.
  5. pvanv

    honeymoon over...MFS6D

    How did they adjust the pilot screw when it has an EPA plug blocking access? It's a violation of federal law to take that out. If you can't idle down low enough, that really sounds like some varnishing in the low speed circuit. Do you run the carb dry at the end of each day, unless you are...
  6. pvanv

    Unreliable spark Tohatsu MFS6C

    The issue with intermittent electrical items is that you can't measure the failure unless they are failing at that moment. I have never seen a failed ignitor, but anything is possible. Make sure the insulation of the brown kill wire is not damaged.
  7. pvanv

    Tohatsu 9.9D2 after wrong modification?

    Apparently. Many upgrade the old 9.9s to 15s by installing that cam.
  8. pvanv

    Tohatsu 9.9D2 after wrong modification?

    3M3637180M is the 15/18 throttle cam, so you got a free upgrade.
  9. pvanv

    new to me Tohatsu 9.8 problems: oily, smoky, finally runs but won't idle...

    Those pumps are very reliable. I would just flush the heck out of it. Probably still need a good carb cleaning. Likely don't need a kit.
  10. pvanv

    new to me Tohatsu 9.8 problems: oily, smoky, finally runs but won't idle...

    Probably an MFS9.8A3. Year is irrelevant. Only holds about 3/4 quart of oil. Yes, get the level down between the 2 marks on the dipstick. After that, if you can't get idle, it likely needs the carb disassembled and Properly cleaned.
  11. pvanv

    8MLHU limited RPM

    It's acetone spray. No squeezing the bulb does not help. Yes, temp is pretty uniform. Not overheating at all. Both plugs are newish and look fine. Odd.
  12. pvanv

    8MLHU limited RPM

    Yeah. That has the pump on the side of the carb. Works really fine up to 2800, but then no more. If you blip in a wee bit of carb cleaner while running (to richen it), it nearly stalls. I had the same thought. And, since the mechanical linkage for spark advance goes all the way to the stop, I am...
  13. pvanv

    8MLHU limited RPM

    The timing seems good, as it goes right up to the stop. I am running in my test tank. The motor is to push a small sailboat.
  14. pvanv

    8MLHU limited RPM

    A customer brought me this little 100:1 2 cylinder 2 stroke. Complains it doesn't rev fast enough. Hmm. Carb opening fully. Spark advancing fully. Compression great (about 130 pounds). Plugs look to be burning fine. Starts easy on about 2 pulls. Throttles up great until about 2950. Then more...
  15. pvanv

    2006 Tohatsu 4 HP No Reverse

    See diagram below. Yes, it adjoins the push rod.
  16. pvanv

    2006 Tohatsu 4 HP No Reverse

    No. The bearings go all the way in and seat at the bottom of the bore.
  17. pvanv

    2006 Tohatsu 4 HP No Reverse

    Model MFS4A2? If you lower the cam rod all the way, the push rod should engage reverse. If not, did you reassemble correctly? Is the spring holder installed in the prop shaft? Is the cam pointed in the correct direction?
  18. pvanv

    Nissan/ Tohatsu Oil Pump

    Sounds like brushes in the starter are getting hung up. It is repairable.
  19. pvanv

    2004 Tohatsu 90hp tldi error code 7000 and the battery light

    Beware online Factory service manuals; they are copyrighted, and anyone putting them online risks serious legal pursuit. Have you verified the FFP operation?
  20. pvanv

    Tohatsu 9.8 4-stroke dies after 20 min of warming up

    Might well be time to clean the carb. Properly.
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