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    yamana 01 fourstroke 50 idles rough,then smooth

    01 fourstroke 50. when in foward gear at idle this thing will run smooth as silk for a while. Then all of a sudden it will run rough for 30 seconds or so. Then smooth again. It will do this for back and fourth for hours while trolling. But, its always smooth when not in gear. Iv changed the...
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    yamaha 50 fourstroke ,So far no one knows??

    2001 50hp high thrust four stroke. Inside the engine cover next to the 10 pin main connector there are 2 more connectors. One is a four pin female connector with a pink,black,gray wire feeding it.. The other is a 4 pin female connector with 2 yellow wires one with a red stripe and one with a...
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