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    Mercruiser 5.0 MPI low fuel pressure? Engine struggles to 3000RPM

    2005 Mercruiser 5.0 MPI. Engine idles perfectly, but as I advance the throttle in gear it starts to get a misfire around 1500 RPM. It feels as if the ECU transitions from idle to power at that point. At 2000 RPM, the engine runs the roughest and it will not go past 3000 RPM. The spark plugs were...
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    Mercruiser 5.0 MPI distributor issue

    Short version: Installed new distributor (Merc 5.0 MPI with crab style cap -- shaft separated from pressed fitting on top). Boat ran great, but chugged at idle. Friend came and looked at it and believed it was off by a tooth, so moved it by a tooth. Boat now idles great, but misfires above 2000...
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    Shift interrupter issue

    I have an issue with my engine (5.0MPI w/ Alpha One gen 2) quitting when going into and coming out of gear. I can see the shift interrupter engaging when I put the throttle into gear. I've been chasing the engine quitting issue since I bought the boat two years ago. I had the outdrive resealed a...
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    Windshield trim separated and tweaked the walkthrough alignment

    Long story short, I was out in Tampa Bay with my Maxum 2400 SD last weekend cruising along and hit an unusually large wave that hit pretty hard. The bottom screw on the windscreen brace that goes between the curved glass and the flat triangular piece pulled through and left about a 1/4" gap...
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    Low temp indication. 5.0 MPI

    My 5.0 MPI has started indicating low temperature recently on the cluster. It used to indicate "straight up and down" around 170-175 and now sits between 130-140. Water temperature here is around 68-70F. I left it in saltwater for about four days prior to this and assumed the thermostat went bad...
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    Anchor size for 24' boat

    Maxum 2400SD I have currently a tiny, inadequate Danforth style anchor that came with the "coastguard" kit the dealer included with the boat purchase and a second #13 Danforth style anchor that I have managed to get caught on the bottom and bent the hell out of the spades getting it out. On...
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    Mercruiser 5.0 MPI no longer running as warm

    2005 Maxum 2400 SD w/ Mercruiser 5.0 MPI Alpha I Gen 2. When I purchased the boat last year the boat would warm up and the temperature gauge would run straight up and down between 170 and 180. Now, assuming the gauge is accurate, the boat appears to take much longer to warm up and only seems...
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    Windshield posts?

    I did something ignorant and I think that I got lucky as I just didn't know any better. I have a Maxum 2400 SD with a walk-through Taylor-Made wrap around windshield like all bowriders have. I was out in the gulf and hit a wave just right with the windshield open and it slammed shut. Fortunately...
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    Mercury Prop PVS plugs on prop mated to a 5.0 MPI + Alpha One GenII

    After much coaxing from others to switch to a stainless prop, I found a decent price on a used Mirage Plus on eBay and picked it up and installed it on my 24' bowrider with a single 260HP Mercruiser 5.0 MPI. The 19" aluminum prop that it had would allow me to run up to around 4800 RPM and 43 mph...
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    Mercruiser 5.0 MPI idle issues; replaced IAC; bad part? UPDATE **Added Video**

    Ever since I bought my 2005 used boat with a Mercruiser 5.0 MPI it's given some intermittent idle issues. The symptoms seemed in-line with a bad IAC. Usually it would just require a restart and I'd go on my way, but lately it started getting to where the boat wouldn't want to start and required...
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    Jensen MS2013BT sounds bad with "Loud" mode on

    I recently replaced the head unit in my boat with a Jensen MS2013BT bluetooth head unit and I replaced the original speakers with Infinity 612m marine speakers. The unit sounded bad. I thought the speakers may have been wired out of phase somewhere in the boat, so I verified continuity from the...
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    MerCruiser Alpha One Gen II broken trim line

    I had one of the external hoses come apart on my MerCruiser Alpha One's trim system in saltwater yesterday. I believe it is one of the "up" hoses (it's the one with the short fitting on the end). I added fluid to the reservoir and engaged the trim switch. The fluid purged from the system...
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