1974 50 hp Evinrude Model -50473 Warm up lever not working

[mstone1968]

Hello everyone,<br />For some reason the warm up lever on the above mentioned motor stopped working. I was having trouble with the motor running at WOT and idling poorly. I adjusted the Idle screw and rotated the black wheels on the throttle arms to make it idle better. Now the warm up lever doesn't work anymore. It was working fine before, but now it only moves when I move the throttle arm. It doesn't move independently from the throttle arm any more. <br /><br />Also could someone tell me the correct spark plugs and appropriate gap to use on this motor. I replaced the spark plugs and the original spark plugs were actually 2 different kinds. One of the plugs has a flat bottom (nothing to gap?) Is this correct? <br />Thank you so much.

 

[ezeke]

Re: 1974 50 hp Evinrude Model -50473 Warm up lever not working

Take the large allen screw out of the center of the control handle and remove the handle. Assure that the warm up lever is on its hub and that the screw is tight.<br /> <br />The warm up lever should only lift while in neutral and should be down when engaging the gears.