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  1. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    So a bit of an update: I was able to disassemble the air bypass flapper things inside the intake manifold and get them functioning with the vacumm actuator. I installed the new to me used 02 sensor and so fare on the muffs it doesn't seem to be alarming. Also installed a new to me used low...
  2. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    That system isn’t currently functioning it is stuck in the wide open position. It’s on the todo list. I’m led to believe that the wide open position is where the butterflies would be in running the motor over 4000 RPM.
  3. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    ok good info and this aligns with what happened initially. The boat would idle for about 2-3 min and then alarm. turn it off and turn it on and alarm would go away for about the same time idling. Anything over idle did not trip an alarm. I replace the O2 sensor and the alarms all went away...
  4. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    I have bought a used O2 sensor from ebay to check this out... Theory is worst case I get an O2 alarm and I can get past the 4K limit... Worst case its something else and nothing changes... Pretty solid AI response from both chatgpt and gemini that the aftermarket sensors are a big no no
  5. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    OK I talked to the boat grotto in SD this morning, just fact finding. So here is what he told me. 2001-2009 honda outboards 200 and up all have ECMs that fail. It was a known issue and the ECM is non-repairable and they all fail. He said he has worked on countless of these motors with all the...
  6. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    Yummy
  7. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    so I paid a mechanic to do that work. The VST was gnarly. He cleaned it spotless according to him and we replaced the high pressure fuel pump and the holder and some hoses etc. It ran pretty good for the first day otw. We had an OT error so we were constantly shutting it off to clear the alarm...
  8. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    She still looks good though even if she’s a bit slow right now
  9. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    I will stoked to have all the help and I have learned a ton.
  10. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    I just bought a good used one off off eBay if it works I will spring for a new one…
  11. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    oil looks normal and smells like oil no real gas smell from the oil... I am wondering and thinking this low pressure pump may be the culprit.. New ones are pricey, 280 bucks.... cheaper than a motor I guess... Anyone had one of these apart, can I just disassemble and look inside?
  12. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    Agreed thats it. It wasn't particularly dirty, oil on the screen which a quick blast with cleaner and it was gone..
  13. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    Ok so pulled the sending units I have two for some reason one in back on in front both are clean and there is no obstruction around pick ups. The tank has some macro dirt in it but any and all of this would never get past the racor
  14. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    I cleaned the screen on this part too.
  15. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    I have a video of it running but its too big even trimmed to 6 seconds to post here... Says files too large
  16. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    yes I saw this on an AI session and I checked with the mechanic. He did not rebuild or disassemble just check that it was creating pressure. its been flagged a couple times in searches that it could be an issue... I checked the oil to make sure it was still full and it was and still perfectly...
  17. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    When I inspected the boat, the tank was the first thing I checked, the fuel was honey colored but perfectly clear. I siphoned it all out through the pick up into white buckets and it was clear. no dirt at all. This was after i towed it home so it sloshed for an hour down the highway. I am still...
  18. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    So I’m on the third cycle trying to figure this out each time I’ve replaced all the filters, including the Recor water separator the low pressure in the high-pressure fuel filters and three times I’ve had the same phenomenon. Boat runs great initially then as the motor gets hot or gets run hard...
  19. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    I should’ve include the tank detail on the initial post. The Boat had about 50 gallons of gas in it. The good thing is they had used fuel stabilizer so while the gas was old and a slight bit discolored in general, there was no varnish or fuel that had turned to gunk in in general the tank looks...
  20. H

    2002 BF225A chokes over 4000 rpm after several hrs of running

    OK I just purchased a boat with a low hrs 550 actually honda Bf225A that has been sitting for about 8 years. I did a full service: compression check all cylinders and they are close to like 200. Lower unit oil impeller oil change, new filter thermostats changed new plugs new low pressure fuel...
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