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  1. pvanv

    General help regarding a 2006 Tohatsu M25C3

    Yep. Normal.
  2. pvanv

    General help regarding a 2006 Tohatsu M25C3

    Yes to upgrade a 25 to a 30 you reset the WOT to full and advance timing. 346873217M LOWER UNIT GASKET SET $24.73
  3. pvanv

    Nissan/Tohatsu reverse gear rod adjustment?

    Yes, you drive out the 3mm pin with a punch.
  4. pvanv

    NS55B

    Very few if any parts available.
  5. pvanv

    Nissan/Tohatsu reverse gear rod adjustment?

    Upper linkage may be bent.
  6. pvanv

    Bulb

    Probably a leaky o-ring on the fuel hose. I am sure it cranks... just doesn't start.
  7. pvanv

    Nissan NSF25A running at 2400 rpm @WOT

    No idea of speed ratio meaning. avail props 8,9,10,11,12,13 Figure maybe 300 rpm per inch of pitch. Diameter is insignificant.
  8. pvanv

    Nissan 50hp issues

    Check for corroded-through exhaust cover.
  9. pvanv

    Nissan 50hp issues

    Water in all 3 cylinders? Could be getting into the block. NSD... as in TLDI? or do you mean NS50D2 carbureted?
  10. pvanv

    Bulb

    I take it this an MFS9.9E. That's EFI. Of course, the fuel line is under suction when running. So the bulb might get soft. Not an issue, and the motor should continue to run OK
  11. pvanv

    Nissan 50hp issues

    What is your actual model?
  12. pvanv

    How to manually check codes NSD90B TLDI

    The TPS is fixed. You set the TPS initial setting in the ECU.
  13. pvanv

    How to manually check codes NSD90B TLDI

    As I mentioned on that other forum, I would expect at least 14v when running. There is a procedure, spelled out in the Factory service manual to set the TPS initial value. If that's wrong, all bets are off. You MUST reset the TPS initial value after replacing it. The FSM for the C model is good...
  14. pvanv

    Will the lower unit off of a nissan ns25c3 work on a nissan ns25b

    Maybe. YMMV. No info on that old B model. Sorry.
  15. pvanv

    NS8B shift shaft o-ring and bushing replacement

    There is a bushing with both inner and outer o rings. The inner can be tricky to do. We usually re-seal the complete LU when doing this.
  16. pvanv

    Low Compression Top Cylinder NS25C3

    Gasket from China? I wouldn't...
  17. pvanv

    Tohatsu 2-stroke impeller

    BTW, the impeller will flip into proper orientation as the motor runs.
  18. pvanv

    Help! Tohatsu MFS4/5/6 oil leak

    If the lower seals are not installed correctly with the spacer, all bets are off.
  19. pvanv

    NS25C3 Dieing in Gear

    Verify idle speed and mixture.
  20. pvanv

    Looking for a Tohatsu M5A service manual ?

    Ancient unit. Best as a display, not a running motor...
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