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The motor is a 1971 6 horse. powerless in gear. just dies out. changed gear oil ,cleaned carb and replace fuel pump. runs in neutral fine but smokes. could it be a bad mixture ratio
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I am having the same problem with a 1971 6hp evinrude fisherman. Here is what I've done so far. Pulled off the carb, put in a kit(carb), adjusted the float to 1" to 1-3/8". Replaced the packing washers in the low speed needle, adjusted out the needle out 1.5 turns. Replaced the fuel pump with a brand new OEM one. And when I rebuilt the carb I used carb cleaner and blew it out in all orifices with compressed air. This is what the engine is doing. In neutral the engine will rev up to a good RPM, but as soon as its put into gear it lug's out and barely runs above an idle. It will start up if it dies, but it won't run wide open. I mixed the fuel a little rich, because the motor had been in storage for awhile, 40:1. Here is the weird thing when the engine was running in the water tank I thought that I would mess with the Low speed needle to get it to run better,(High speed-is set with a nut cap) and I was able to unscrew the needle all the way out without affecting the engine from its bad idle. Any Ideas would be helpful as I'm about to breakdown and take it to the dealer. Thanks for your time Pete
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