Kill switch and low speed mixture for 66 18HP evinrude

[jchacon100]

Hi I have two questions concerning an 18HP winfast 1966 Question 1) the kill switch, since all it does is to ground the motor why could I not use a regular switch (on off). From the picture you can see that all I have to do is to close the circuit by touching the 2 metal points with a screwdriver, so if all that needs to be done is to open or close the circuit… then why not a regular switch?<br />Question 2) What is the low speed mixture knob for? How do I set it and use it?<br />

<br /><br />Thanks once again<br />Jose

 

[JB]

Re: Kill switch and low speed mixture for 66 18HP evinrude

Hi, Jose.<br /><br />Your kill switch was a pushbutton switch when it was made. Part of it is gone. A replacement switch from your JohnnyRude dealer or NAPA shouldn't cost you very much.<br /><br />For low speed mixture adjustment you should have a manual. Carefully read the section on theory of operation so you understand what happens when you change this setting, then follow the instructions.<br /><br />Good luck.

 

[DJ]

Re: Kill switch and low speed mixture for 66 18HP evinrude

Jose,<br /><br />Yes you could use a two position key switch or a togle switch. The key switch would work backwards though. Off being On and visa versa.<br /><br />The jet is a bit trickier, as JB indicates. Typically, you can turn the jet all the way in CAREFULLY (do not overtighten).<br /><br />Back the jet out about two turns.<br /><br />Start the engine and observe the idle once it is fully warmed up.<br /><br />If the engine wants to sneeze or backfire, it's too lean, turn the jet out slightly, let the engine recover and see how it idles.<br /><br />You will have to find a happy medium between lean and rich. It will change with temperature (ambient).