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    01 Yamaha 150 hpdi fuel issue

    I have a 27 foot Sportcraft with twin 01 Yamaha 150 hpdi's. Each engine has 202 hours and I've owned them for half of that. This past weekend while using the boat I was cruising and each engine was running at approx 4500 rpm. Suddenly my poet engine dropped about 1000 rpm and then surged 2-300...
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    Fuel system advice twin 150 hpdi

    Just bought a 25 foot boat with twin 2001 yamaha hpdi 150 hp. Both engines have 116 hrs on them and are fairly clean. My issue is the fuel pumps on either engine don't seem to be powering up... Is there something that both engines share as far as a fuse in boat maybe that would cause this? On...
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    89 Johnson v4 overheat circuit

    Quick question My Johnson v4 has a temp sensor on both starbd and port side the port having two wires... My question is how does this circuit work if the starboard overheats will it put the engine to slow mode? My alarm went off this morning solid tone but never dropped in to slow mode...
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    More help needed 1989 omc 140 seadrive

    Okay first off thank you for all of the help in my other thread. I've sorted some issues out but I'm still having one I can't wrap my head around. Here are the details I'm using the engines in Ontario vanada so out water temp is approx 48 degrees My starboard engine is running good the port...
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    1989 omc seadrive 140 hp advice needed

    First time poster... I've done a lot of reading on this over the past few days and can't seem to get the answers in looking for so here's my situation... 1989 sportcraft 270 with twin omc 140 seadrives Stbrd engine starts and runs great Port has following symptoms - hard to start usually...
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