Re: Evinrude Zephyr - Low / High Settings
The low speed needle is adjusted at idle throttle setting and the high at WOT and you will have to repeat several times as they interact somewhat. The low is adjusted outward until you get a rich, rolling kind of idle ... note the position. Turn the needle CW (inward) slowly until the motor idle speed starts to get very smooth and speeds up slightly. The correct setting will be the mid point between rich and lean just found.
The high is done in the same way, except at WOT. After completing the Low and high, go back and recheck each at least once ... you may have to alter the setting slightly.
BTW, a good starting position is usually ~ 1 1/2 to 2 full turns out from lightly seated. Be carefull NOT to turn either needle in hard, or you will wreck the needle profile (and it's ability to be correctly adjusted.)
Enjoy.