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Problem with my 20hp mercury. Late 70's
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<blockquote data-quote="Saltfisher" data-source="post: 334394" data-attributes="member: 13064"><p>I got ahold of a late 70's mercury 20 hp from a friend that was having issues with it. It was running good for him, and at some point during service, things went wrong. He took it to a local shop for service and his lower seal was bad. He had the whole lower unit replaced with a new prop. Bunch of other stuff done (which ill list below the problem) here is what the motor is doing....</p><p></p><p>Takes a little work to get it started. Once started, seems to idle and revv in netrual easy. When put into gear and applied throttle, it doesn't want to build RPM's. Boat goes 5mph max. Here is the list of what was done from the shop...</p><p></p><p>Water pump impeller</p><p>Inlet filter screen</p><p>Spark plugs</p><p>Good used lower unit with new GL5</p><p>Cleaned fuel pump</p><p>Cleaned carb</p><p>Fuel pump missing inlet screen (replaced)</p><p></p><p>Any ideas of why its doing this? I thought he said he had the carb worked to accept ethanol. Something with the jets? Not sure.... Anyways.... Any idea what's going on?</p><p></p><p>Thanks.</p></blockquote><p></p>
[QUOTE="Saltfisher, post: 334394, member: 13064"] I got ahold of a late 70's mercury 20 hp from a friend that was having issues with it. It was running good for him, and at some point during service, things went wrong. He took it to a local shop for service and his lower seal was bad. He had the whole lower unit replaced with a new prop. Bunch of other stuff done (which ill list below the problem) here is what the motor is doing.... Takes a little work to get it started. Once started, seems to idle and revv in netrual easy. When put into gear and applied throttle, it doesn't want to build RPM's. Boat goes 5mph max. Here is the list of what was done from the shop... Water pump impeller Inlet filter screen Spark plugs Good used lower unit with new GL5 Cleaned fuel pump Cleaned carb Fuel pump missing inlet screen (replaced) Any ideas of why its doing this? I thought he said he had the carb worked to accept ethanol. Something with the jets? Not sure.... Anyways.... Any idea what's going on? Thanks. [/QUOTE]
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Problem with my 20hp mercury. Late 70's
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