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    '89 340 DA Engine issue at low RPM

    When you say vapor lock, are you meaning fuel vaporizing in the lines and not able to feed the carb properly? I'm assuming excessive heat build up in the fuel lines? Is this a common thing on these 7.4L engines. If it is vapor locking what could be the cause. Still new to this boating thing...
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    '89 340 DA Engine issue at low RPM

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    '89 340 DA Engine issue at low RPM

    Distributor cap is new as are coils(also did swap coils from port to stb) Love the boat but its frustrating me right now. Intermittent issues are a pain.
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    '89 340 DA Engine issue at low RPM

    I agree about the wires. Could be suspect but i would think that would give me issues at all RPM? Maybe the ignition sensor in the distributor could be heat affected. Thanks
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    '89 340 DA Engine issue at low RPM

    Thunderbolt IV i believe. Wires look good. plugs were new at end of last year. New Cap and rotor at beginning of this season. Seems odd that it only happens on my way back in at slow speed.
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    '89 340 DA Engine issue at low RPM

    Hello all, New to the forum, and new to boating. I have a new to me this year '89 340 DA. Twin 7.4L with velvet drives. Having issue with starboard engine. Starts fine, runs fine at no wake speeds. Get it up on plane with no problems. Run around for a while with no issues. Head back into marina...
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    Tripping CFCI on shore power in boatyard

    Hello fellow boaters, New owner here. Bought a 1989 340 Sundancer late last year. Only used it a couple of times before winter storage. Went to boat this weekend to do some preseason maintenance etc. I plugged my shore power cable into the 120v 15 amp outlet in the boat yard. Using a pigtail...
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