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Recent content by gavo

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    43 mercruser down on power

    "i have a 4.3 mercruser alpha "i have a 4.3 mercruser alpha one,runs perfect for the first 30,40 mins up at 5000rpm then it will drop in power and only sit at about 1500rpm to 2000rpm ?it will backfire if i try and give it some.if i turn it off and let it sit for 20,30 mins its ok and its the...
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