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  1. 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.
  2. 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...
  3. pvanv

    2006 Tohatsu 4 HP No Reverse

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

    2006 Tohatsu 4 HP No Reverse

    No. The bearings go all the way in and seat at the bottom of the bore.
  5. 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?
  6. pvanv

    Nissan/ Tohatsu Oil Pump

    Sounds like brushes in the starter are getting hung up. It is repairable.
  7. 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?
  8. pvanv

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

    Might well be time to clean the carb. Properly.
  9. pvanv

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

    OK, always a good idea to mention actual model. MFS9.8B? Always prudent to run the carb dry at the end of the day. Grab a cheap IR thermometer to see if you are overheating. Is it peeing well, and is the stream either cool or slightly warm?
  10. pvanv

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

    Unfortunately, the original MD90B manual is out of print. But the MD90C,( which is available from any dealer), manual has the same codes. The schaeder valves are metric; you can get an expensive gauge set from Tohatsu, or use a tire gauge.
  11. pvanv

    Tohatsu M18c problem

    I would ask the aftermarket dealer about compatibility. You can use a timing light to verify timing.
  12. pvanv

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

    I assume your model is MD90B. What in the heck is a fuel vacuum regulator? What manual are you using? 7000 and battery is a FFP issue. Could be a severed line or a pump problem. That info is right in the Factory service manual. What are your air and fuel rail pressures?
  13. pvanv

    Tohatsu M18c problem

    the -1 is just a newer revision. That motor is so old, it's amazing you can get _any_ parts for it.
  14. pvanv

    Tohatsu M18c problem

    Sounds like you also have a fuel issue. I would clean the carb. Properly.
  15. pvanv

    Nissan/ Tohatsu Oil Pump

    Definitely need a compressor cylinder. If oil pump is leaking, need that too. Then see whether pressures are OK.
  16. pvanv

    Tohatsu 20HP no=spark

    I suppose, but I would ask CDI electronics their opinion.
  17. pvanv

    Nissan/ Tohatsu Oil Pump

    That cylinder looks pretty bad.
  18. pvanv

    Nissan/ Tohatsu Oil Pump

    Pressures sound s bit low.
  19. pvanv

    Nissan/ Tohatsu Oil Pump

    The electric pumps are pretty reliable. MSRP around $400. I changed one in all my years working on these. There are fewer than 10 units in stock at Tohatsu America.
  20. pvanv

    Tohatsu 20HP no=spark

    No put downs here; just helping you in the right direction. If you are flooding, the float valve is not seating. Period.
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