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Needle Valve adjusting

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  • Needle Valve adjusting

    I have a 1999 150 Saltwater Series. I just did my first carb cleaning, pretty sraight forward, reassembled with no problems. I didnt remove any neeedle valve adjusters this time, what is the basic starting adjustment for these valves? Help appreciated.

  • #2
    Pilot screw setting is 1 1/4 turns on 99 S150
    Regards
    Boats.net
    Yamaha Outboard Parts

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