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    TBI 260 Wont Idle When Warm - Will Run other RPM

    Fuel pressure is 30 psi. The motor will not idle at normal range, even when cold and it's idling its about 1000 rpm. When it tries to stall it starts making a sucking type hissing sound from the intake. Both injectors spray good, it will basically stall but then catch itself and shoot up in rpm...
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    TBI 260 Wont Idle When Warm - Will Run other RPM

    Hey everyone, On the last trip last season my 1999 Sunsport with twin 5.7 mercruiser EFI (TBI) motors had an issue. Port motor runs great. Starboard motor starts right up when cold, will idle great, can advance the throttle and all goes well. Once it warms up for about 5 minutes it cuts out...
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    350 MAG MPI died underway, won't start back up. No Alarm/Code?

    Unloaded my Rinker 232 from the trailer, idled a bit with no issues (10 min MAX.) while I waited for my buddies to arrive, and headed out and within 1 minute of cruising at 3200 RPM, the boat slowed down quick and bogged out, as if I throttled down back to neutral. Tried to restart it and got...
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    Alarm code issue and guardian mode

    Need help on a mercruiser alarm code issue. My 350 mag mpi has mercruiser VesselView mobile connected to it so I can view data on my phone or any Bluetooth device. It runs great with no problems, no overheating, good oil pressure, everything seems to be normal but once I hit 3500 RPM the 2 beeps...
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    Long Block Help

    Hi all! New to the forum here. Been searching around but I am looking for feedback on reman long blocks. I cannot afford a brand new long block so I am looking at remans. My current 5.7 350 (vortec) doesnt run. The previous owner claims it hung a valve. I removed the risers and manfiolds and the...
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