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Having issues keeping my 25HP OMC running, and above idle
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<blockquote data-quote="Pappy" data-source="post: 386129" data-attributes="member: 3278"><p>Start your idle mixture setting at a rich 1 1/2 turn mixture setting from a lightly closed position. Yes, the engine will run rough. </p><p>If you can bring it above idle from that setting then we know the carb is capable of supplying the needed amount of fuel. </p><p>Start bringing the needle in 1/4 turn at a time and let it run for at least 30 seconds between setting changes. Try the throttle each time to see if you are making headway. If you are, keep going until the engine coughs lean or refuses to accelerate again then back the setting up to the last known good setting.</p><p>Carb to spark set up would be well worth looking at as well. You should have a mark on the cam that picks up the roller on the carb. Set that to where the roller is picked up at that mark, not sooner or later. </p><p>Are you sure you put the gasket/seal around the high speed nozzle? Should seal when the bowl is fastened to the main body. </p><p>This should keep you busy for a while.</p></blockquote><p></p>
[QUOTE="Pappy, post: 386129, member: 3278"] Start your idle mixture setting at a rich 1 1/2 turn mixture setting from a lightly closed position. Yes, the engine will run rough. If you can bring it above idle from that setting then we know the carb is capable of supplying the needed amount of fuel. Start bringing the needle in 1/4 turn at a time and let it run for at least 30 seconds between setting changes. Try the throttle each time to see if you are making headway. If you are, keep going until the engine coughs lean or refuses to accelerate again then back the setting up to the last known good setting. Carb to spark set up would be well worth looking at as well. You should have a mark on the cam that picks up the roller on the carb. Set that to where the roller is picked up at that mark, not sooner or later. Are you sure you put the gasket/seal around the high speed nozzle? Should seal when the bowl is fastened to the main body. This should keep you busy for a while. [/QUOTE]
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Having issues keeping my 25HP OMC running, and above idle
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