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    Yamaha HPDI 300 losing power intermittently at higher RPM's

    Hey Everyone, I am needing some help with an issue. I have a 2005 HDPI 300 LZ300TXRD. At higher RPMs 4500+ the engine feels like it switches from 6 cylinder to 4 then back to 6. The hesitation last 2-6 seconds and happens 2-3 times a minute. Its sudden like a flick of a switch. This engine...
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    LZ300TXRD Help plz

    Hello Everyone, a quick introduction here. We are a military family boating on the Pamlico River in NC. We picked up a used Yamaha LZ300TXRD got it mounted to our custom built 33ft pontoon boat and we have had some fuel issues. The engine will run fine at idle, and also with choke. Once the...
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