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  1. T

    Stuck spark plug - BF150

    AF sensor ohmed out ok. I think it’s time to bring it in…..
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    Stuck spark plug - BF150

    Wanted to post a follow up on this. Ended up getting a poor idle and surging/bogging last time out. It alarmed (MIL) long on and off, but when I checked the code at home no dice (alarm went away, which is odd). So I decided to take out that plug. PB blaster—no dice. I ended up going with an...
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    Fuel pressure adapter

    Thank you! Not sure what I’d do with 10🤣.
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    Fuel pressure adapter

    I’m looking to do some testing on my 150 before selling, but can’t locate the 6mm adapter. Every kit I’ve looked at doesn’t have it, so I ended up doing the free rental from autozone. Any ideas?
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    115 Honda, 4stroke, consecutive beeps

    Is there another online fuel/water filter? I feel like I’ve read that beep code can be TPS on this forum.
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    2006 Honda BF150 Fuel leak from Fuel pump cover on Vapor Separator

    I’ve never seen it with mine on the VST, but it has happened with my filter covers (they were finicky until I replaced the whole setup). Where is the leak specifically? https://www.boats.net/catalog/honda/outboard/150hp/bf150ak0-xa-vin-banj-1300001-to-banj-1399999/fuel-pump-fuel-hose
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    Stuck spark plug - BF150

    Thanks for everyone’s help. Since I last checked this, I’ve run over 160 miles, and despite a few rough startups, it smooths out in a few seconds and has no change in performance. It looks like this will be a fall project—HonDan I’m not sure about the manifold procedure. I assume that is...
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    Stuck spark plug - BF150

    It is the #3 cylinder. Last long run had a little more steam than usual and I wanted to check the plugs which is how I found the issue (new in spring). I suspect it’s running hot (alarms work and no alarms on 75 miles on Monday). Plugs 1 and 2 look like the attached. Also checked both t stats...
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    Stuck spark plug - BF150

    I have one plug that will not budge and I’m hesitant to put too much torque on it as I would end up with a sheared plug. I added PB blaster, allowed for a two day soak (tighten/loosen) sequence to get the fluid down further and still nothing. My fear is that it is cross threaded as well. 1...
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    Bf 150 flush port

    Wanted to try a different look with how effective the flush port is on my 150. Images started 20 minutes after I got off the water. You can see the difference in the starboard side after about ten minutes of flushing. Port side showed no changes and stern you can catch the manifold being...
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    2004 Honda BF150 Alarm I cant seem to root cause

    This drawing shows what I think is upside down.
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    BF150 stainless prop selection

    Hi All, I’m currently running a stainless Mirage 17P prop on my Honda 150, and turn 6000 RPMs for 39-41 mph on my center console. It seems ideal, but many of my runs are increasing in length and I prefer to have a higher cruising speed (and higher top end if possible). I cruise at 3800...
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    BF150 harness/plug??

    Hi all, This one has me stumped and looking at the wiring diagram has me at a loss. I think it is for digital gauges but want to double check. It’s six wires and the pictures should help!
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    Bf150 flush port - will this work?

    When I purchased this boat three years ago, the flush port was blocked and needed to be removed/cleaned/reinstalled. Fast forward to this season, and I noticed a small leak at the junction. So, go to remove the bolt and off goes the head. Add in left hand drill bits increasing in size then go...
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    Kill switch connextion

    Just when I thought I had no other projects to do, the world of boating has given me a new one. Honda BF150A6. Kill switch does nothing (don’t need it in to start, pulling it does not kill motor) There are two black wires coming from the kill switch with pigtail leads (taped). From the...
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    Outboard to Bluetooth??

    Hi all, I may be looking in the wrong places so far, but does Honda have a similar product to Mercury’s vessel view, which plugs into the outboard and allows for real time data into your smartphone? Thanks!
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    Lower unit dilemma

    Looking to winterize this week, however I want to repaint the bottom of the skeg before spring. I may also do the lower unit seals depending on fluid condition. My dilemma is if I should remove the LU to do this work in my basement this winter or not. I’ve seen outboards with the LU removed...
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    Tube Set, Oil - BF150

    Quick question—-what is the role of this part (part 22 on the diagram) referred to as the “tube set, oil”? I see it connects to the head cover and then to what looks like the oil pan. Thanks!!
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    Honda voltage gauge

    Since my rewire I notice that my voltage gauge flickers at a high frequency. The delta is about 1 volt, but I am concerned it is either the alternator or my ACR is acting up. Here is is a two second clip of the fun... https://youtu.be/DZkpQFbh7D0
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    2006 Honda bf150 fuel filters and water separator

    Hello, I am having trouble understanding the removal of the two filters/bowls that have the suspension straps on them. Do I need to remove the strap prior to the bowls? I got a bad tank of gas and need to rectify all the mess. Thanks!!!
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