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    Mercruiser 5.0 starting problem

    Tried to start my 2003 5.0 Mercruiser sterndrive today to winterize the engine. Initially the starting system acted normally as the engine turned over and almost started but didn't quite catch several times (boat has been sitting idle for over a month). Then when I tried the ignition switch...
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    Water penetration in Alpha 1 sterndrive

    In fall 2022, I had a full service done on my Alpha 1 sterndrive including replacing the gimbal bearing, new bellows and a new water pump assembly in the lower unit by local marine mechanic. Due to health reasons, i did not use the boat until summer of 2023. There is now a slow water leak coming...
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    Audio warning system on 2003 Mercruiser 5.0

    I have a 2003 Bayliner I/O with Mercruiser 5.0 with thunderbolt V ignition control module and electronic fuel pump and Alpha One stern drive - also has partial closed water cooling system. The audio system alarm currently goes off (continuous horn) when I hit 3000rpm or more while under way -...
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    2008 Honda 75HP EFI outboard challenge

    My son recently bought a 2008 Hewescraft packaged with 2008 75hp and 8hp Honda EFI outboards from original owner. Son put fuel stabilizer in tank upon purchase when filling tank. Main has about 150 hours on it. Main works great at up to 4000+rpm for about 15 minutes then starts to sputter and...
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    2003 Mercruiser 5.0 fuel pump challenge

    I have a 2003 Bayliner I/O with Mercruiser 5.0 with thunderbolt V ignition control module and electronic fuel pump - not fuel injected. After third day on water in remote location, fuel pump would not run with ignition and kill switch on. Local mechanic helped confirm fuel pump was working but...
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