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Recent content by nanserbe

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    2015 Honda BF115D

    It very well could be inaccurate, it’s one of those Maddox ones from Harbor Freight. The problem I’m running into is not being able to hit the rev limiter with two props that should absolutely be able to (13p &15p) and it’s developed a slight random miss at idle and under load. (See the above...
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    2015 Honda BF115D

    Whatever the factory setting was, there’s 195hrs on this engine and I haven’t messed with the valve lash at all. Correct me if I’m wrong here though, shouldn’t the PSI = atmospheric pressure x the compression ratio? So for a 9.6:1 Compression Ratio on this BF115D x 14.7psi (sea level...
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    2015 Honda BF115D

    Started the boat up today during a break in the PNW rain. Revved it to around 2500rpm and noticed that there is an occasional miss. Videos here:
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    2015 Honda BF115D

    Something worth noting here - I noticed that the NGK plugs may be the wrong ones. The manual as well as boats.net call for ZFR6K-11, while I had BKR6E-11. All the specs look similar (heat range, length, projected tip, etc.) but with two different part numbers google says that there may be a...
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    2015 Honda BF115D

    Next up, plugs. I replaced them with a set of Denso to see if they're any better/different. I know Denso isn't the favorite flavor here, it's just what I was able to get locally. These plugs had about 25-50 hours on them. In order from top to bottom:
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    2015 Honda BF115D

    Ran a quick compression test 148–152 across all four cylinders. In order from top to bottom:
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    2015 Honda BF115D

    Also, only because I haven't redone them yet, I bought all new fuel line (3/8" Shields 368), and a new primer bulb. I grabbed a couple 12oz of bottles of Ringfree. My plan regardless of the compression is to run a shock treatment on it. 3 gallons of ethanol free and 10oz of ring free is about...
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    2015 Honda BF115D

    Back from vacation, I will compression test this week and post back. Some more backstory, the dealer I bought the boat from replaced the high pressure fuel pump right before I bought the boat. He attributed it to the boat sitting for years before being sold to me. The second time I went out on...
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    2016 Honda (tohatsu) 150 stalling and surging over 3500 rpm....sometimes

    The injectors are certainly a possibility, there’s usually a shop near you that can clean them if you bring them in. I’ve found people with the injector machines via Facebook too. There’s also the at home carb cleaner method you can find on YouTube. Have you also tried having someone pump the...
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    2006 Honda BF150 stalling

    Good catch! I’d say replace the O ring, clean everything up as much as you can with carb clean and put it back together. If you still have low PSI then it might be the pump or the pressure regulator. You can check the regulator by unhooking the vacuum hose to it, which should give you full...
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    2016 Honda (tohatsu) 150 stalling and surging over 3500 rpm....sometimes

    How did the float and seat look in the VST? It almost sounds like it could be getting stuck
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    2015 Honda BF115D

    I pulled all the plugs out to see if I could tell if one was different than the others, these NGK plugs have about 50 hours on them. I have a set of Denso plugs to go in and see if that changes anything, I’ll run a compression test when I change them out. Another thought was the oxygen sensor...
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    2015 Honda BF115D

    First time poster here. I have a 2015 Honda BF115D. During operation, the engine feels like it has a flat spot in the power band when getting up on plane. Probably around 2500-4000rpm If you push past it by accelerating further it smoothes out and cruises fine. The engine will not turn past...
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    2015 Honda BF115D

    First time poster here. I have a 2015 Honda BF115D. During operation, the engine feels like it has a flat spot in the power band when getting up on plane. Probably around 2500-4000rpm If you push past it by accelerating further it smoothes out and cruises fine. The engine will not turn past...
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