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    Honda BF50 new noise under High RPM/LOAD

    Im so relieved. I can’t thank you enough Jgmo! It definitely has that throaty air intake sound in hindsight. Now i can concentrate on USING this boat instead of hunting boogeyman. It’s prime shrimping season so i’ll be idling around the creeks of Jekyll and St Simon looking for salt and...
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    Honda BF50 new noise under High RPM/LOAD

    T Thank you so much! This sounds like what i’m hearing!….just seems a little too raw/throaty! It’s running perfectly. I’ll keep yall updated :)
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    Honda BF50 new noise under High RPM/LOAD

    Well guys i’m back again with this old motor. After issues all last few years with flywheel magnet delamination, bad CDI (after replacing almost everything) is running great and is now reliable BUT i feel like it’s a little too loud underway. This added rattle/vibration sound has only been...
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    It worked!!! It was the CDI. I know they are robust but i think my old delaminated flywheel magnets hitting sent nasty waveforms and fried it when i first got the boat. Runs great! Ran all evening at every throttle level and not a single hiccup. Much more power now 4-5 mph faster top need. So...
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    HAVE NOT RUN THE NEW CDI YET. Hunted around all afternoon. Neither shorting the oil or temp sensor wires to ground point triggers the buzzer. Once again my conclusion is that BOTH CDI have a problem with the buzzer/limp mode leg internally. All runs on the boat have continuity and are in...
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    So i jumped the CDI Y/G output wire that is in charge of buzzer activation during overheat/low oil and buzzer worked. When i jump the red temp switch wire to ground i’m not getting any change in the Y/G CDI buzzer output. There IS continuity to the red wire on the alert system plug on the CDI...
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    Ok i swapped the Red and yellow and grounded temp sensor and oil light went out so i think it’s the red bulb that’s malfunctioning. Now the question why is buzzer working for trim sensor but not overheat. Both are tied to Y/G. Signal to sound buzzer should come from CDI with temp sensor...
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    With the swapped CDI the temp warning light still isn’t lighting when i jump the signal wire to a grounding point off the sensor. There is continuity to the signal wire and ground from the engine to the indicator plug up front. Buzzer works with 12v too and works for the trim alarm. The...
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    I really appreciate the response. This Cdi will be every component swapped so will be interesting. Not sure what to do if it still acts up. I’ve tested most all wires and grounds around motor and all are ok. Will report back
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    So after some research sounds like due to the nature of these CDI they are hard to test with a standard multimeter. Found lots of cases in different honda motors where people are getting mega ohms where the manual clearly says kilo ohm. I even purchased a 100$ meter today and still get mega...
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    33 minutes ago Add bookmark #83 Allright terrible news…the CDI that arrived shows mega ohms too. 5 mega ohms. Which is 5,000 K ohm. Specs say 5-500 K ohm. This is all really upsetting. I read another forum where i guy was getting Mega ohm. None of the specs in the manual are right for me...
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    Just for clarity…I noticed the CDI table in the service manual says (KOHM) for the units. Was disappointed bc i thought mine might not be bad but I am getting 2-5 MEGA ohm when i measure. This would be 2000-5000 kilo ohms which is out of the 5-500 kohm range. In addition some of the circuits...
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    One last note i had the magnet delamination when i first got this motor and was knocking the coils…i bet those pulses helped to destroy this CDI. I’ve probably put 1300$ this motor at this point but i guess it’s cheaper than a used F70 and sips fuel. HOPEFULLY I get some decent life out of it...
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    I’m sitting here in shock LOL…threw everything but the kitchen sink at this thing. Saved in the last quarter here today…about lost it hahahaha
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    OMG GUYS!!!! I tested the thermos switch for the heck of it today and it was not working on the panel, so I confirmed that signal was getting up to the helm and ground and it was and it got me thinking about the CDI again so I decided to go ahead and pull it off and test it. IT FAILED EVERY...
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    how about 3 of these and shoot for a cloudy day?
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    I meant DVA btw :)
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    Ok i ordered a new OEM fuel pump 85$ shipped great price. BUT honestly this whole time my heart has said CDI. Have just avoided they are not available new really and 300$ used even. Mine cosmetically looks great (but i know that means nothing). Seems with a bad fuel pump after sitting and...
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    1997 HONDA BF50a RUNNING DETERIORATING AFTER 5 MINUTES !!

    Guys i’ve been trying to get my motor working correctly all year and have done nearly everything. Is older but only about 1000hrs. It starts out running perfectly and then quickly goes downhill after 5 minutes on plane. It’s not overheating…temp alert works correctly (was overheating before...
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    honda bf40 shift rod setting

    i did mine again yesterday it’s about 7 threads or the thickness of my pliers (9.25mm). As i said tho, once they are disconnected i think of you spin the top nut too much it can maybe affect the length? Unless the top nut is on the rod with a ring type crimped connection spinning it while...
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