Re: evenrude lightwin
Evinrude model 3042<br />Year of Manufacture: 1962<br />HP: 3 <br />WOT RPMS: 4000<br />Displacement: 5.28 cu.in. = 86.5 ccm<br />Cylinders: 2<br />Weight: 33 lbs. = 15 Kg<br />Standard prop: 6 1/8 x 6 1/4 , 2 blade<br />Gear ratio: 17:28<br />Sparkplug: Champion J6C, gapped at .030<br />Gas/Oil mix: 24:1 (and stick to it - this is an all babbitt bearing engine!)<br /><br />
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From the Old OMC Site. <br /><br />The Johnson/Evinrude 3 or 4hp outboard is probably the best small hp outboard ever built.<br /><br />Initial carburator settings:<br />Turn the high speed knob in (clockwise) until it gently seats against the stop. Then back it off (unscrew) it 3/4ths of a turn.<br />Turn the low speed needle in until it seats gently. Then turn it out 1 and 1/2 turns.<br /><br />Adjusting the carburator:<br />Start the engine on a boat and turn the throttle wide open. It will run rough. Then, with the choke pushed in, turn the high speed knob in until the engine runs well. Turn the knob in 1/8th of a turn increments and give the engine a few seconds to react to the change.<br />Return to idle, or as close as you can get without stalling. Turn the low speed knob in until you achive the best idle. If you note no change, the low speed oriface in the carburator is clogged. Set the high speed adjustment again.<br /><br />Common problems with these engines: <br />1. Fuel filter clogged. It's above brass nut on the fuel tank, where the spigot connects. Often the lower part of the filter gets clogged, so the engine only works with more than half a tank of gas.<br />2. Cracked ignition coils. If they haven't been replaced, they're probably cracked from age. When they're like that, they arc over at higher rpms, so you loose spark in one cylinder. New coils for these engines are pretty cheap (<$20 each). If I'm not mistaken, you can inspect them a little without removing the flywheel - just remove the thin plate on top of the flywheel and look through the holes.<br /><br />Good luck!
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A good artical on that engine.
