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  1. J

    Early Honda B100 10 Horse Rough running

    Yes, draining the carb or unhooking the tank and running her till she quits...or both...is good for keeping the carb "fresh" during storage. Water in the oil is a tough one to figure out sometimes. It can come from several places like head gasket....oil case gasket...or a hole in the block or...
  2. J

    Early Honda B100 10 Horse Rough running

    Check out items# 13 and 14 in the link below: https://www.boats.net/catalog/honda/outboard/pre-1997/10hp/bf100-la-vin-bf100-1000001-to-bf100-1020309/oil-pump-oil-filter-muffler That oil fill body (item 13) is made from a soft type of plastic that warps due to heat from the engine. I have...
  3. J

    Early Honda B100 10 Horse Rough running

    That sounds great Sam except for the oil leak problem. I hope the oil getting in the lower case is something you can find and fix without too much more work. Just make sure you check the level often so it doesn't get so low as to cause major damage.
  4. J

    BF150 Repeated Stalls/Won’t Start

    Hi, Sorry you're having trouble. Ironically, I too was thinking "allergic to water" when I was reading your post. Have you taken a look at the water separator? Item 2 in link...
  5. J

    BF 9.9 Dies soon after starting

    FWIW, I've tried doing those "cross check" resistance measurements a few times too and the readings never seemed to match that chart or make any sense to me either. hondadude, a once VERY KNOWLEDGEABLE contributor here agreed. He was an accomplished dealer tech that helped MANY people on this...
  6. J

    BF 9.9 Dies soon after starting

    Just my opinion but I would choose to run without the Tstat rather than disconnect the sensor. While not ideal, at least that way there's still the possibility of the engine protection system still working if the pump suddenly failed and truly severe overheating were to take place. $3,000 +...
  7. J

    BF90D overheating at WOT

    Hi, To answer your question to William01, most Honda impellers typically have six flexible vanes or "arms" to move water. I have seen outboards, that were overheating, seem to have good/adequate "looking" water flow from the tell-tale that had only ONE of those vanes left on the center impeller...
  8. J

    BF 9.9 Dies soon after starting

    And , since it appears that your heating the original temp sensor may indicate that there's nothing wrong with it, there's still the possibility that there could be some sort of overheat condition taking place like the "localized hot spot" I mentioned previously. Possibly caused by mineral...
  9. J

    BF 9.9 Dies soon after starting

    Because of the symptoms you're seeing, you might want to look carefully at that wire for any sign of it possibly finding unwanted ground someplace. It's sort of a "hack job" approach but, just to get my outboard working so I can use it, I would be tempted to snip that wire near the CDI plug and...
  10. J

    BF 9.9 Dies soon after starting

    I think the sensor is probably an NTC that loses resistance as it heats up and provides a ground to "turn on" the engine protection feature causing the power reduction and engine stall. Disconnecting the wire takes ground away and disables engine protection. But...I think it's possible that...
  11. J

    BF 9.9 Dies soon after starting

    I would like to know if the sensor is a Positive Temperature Coefficient (PTC) type sensor. That means that the material it's made from increases in resistance as it gets hot. At room temperature it would have very low resistance between the wire terminal stud and the threads on the sensor body...
  12. J

    BF 9.9 Dies soon after starting

    Well, very puzzling indeed! It makes me wonder if your "new" sensor is faulty. N.E.W. = Never Ever Worked. OR.... ...the signal that the CDI is receiving from the sensor is being "skewed" somehow by faulty wiring or connection. I can't explain how or back that speculation with any hard facts...
  13. J

    Honda BF-20D Carb Repair

    Amen!
  14. J

    Hondas 150 HP stalling at idle.

    NSDON gives good advice here. Not only with fuel treatment but with the valve adjustment. Something I should have remembered to suggest when I replied. Good luck.
  15. J

    Honda BF-20D Carb Repair

    Thanks Chris, Good tip about 4 to 1 DISTILLED water & CLR as an ultrasonic cleaner solution for these. Any particular reason you chose that specific mixing ratio? I've learned a thing or five while hangin' out here too. Lots of great folks on this forum with good, old fashioned experience and...
  16. J

    Hondas 150 HP stalling at idle.

    Hi, No expert here...I"'ve never worked on a 150 Honda. But the electronic air control valve... item 20 in the link (although the number 20 is obscured by the "boats.net" lettering) is a major factor in controling idle speed. A common problem is that the little filter screen for that valve can...
  17. J

    BF75A Obstruction in Cooling System?

    Well...that seems very odd but... ...definitely encouraging. I'm always suspicous though when a machine "fixes itself". It's likely to only be temporary. I don't know the particulars about if your early model has engine protection built in or if it goes into "limp home" or not but you don't...
  18. J

    BF75A Obstruction in Cooling System?

    Dterch, #4 cylinder is the bottom one.
  19. J

    Honda BF30 (2014) - Throttle linkage not opening fully at WOT?

    Hi, I don't want to represent myself as an expert on these...only worked on one 30 Honda many years ago. But i did read the throttle adjustment directions back then and the set up in your pic looks to be at about 1/2 throttle. The little wheel in the ramp slot of the throttle cam plate sits...
  20. J

    Honda 8hp BFP8 starter circuit 20A fuse location

    Just my opinion but I believe those fuses should be very near the starter motor or in that general area under the engine cover. Apologies if I'm way off.
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