Cylinder cuts out.

[Drifty]

I have a 1971 50 hp Evinrude that starts and runs good, but only for about a minute or two. Then one cylinder cuts out and you limp back to the dock. <br /><br />There seems to be plenty of cooling, or at least there is water pressure from the pump, and the buzzer don't go off. <br /><br />Could it be one of the coils, or is there some magic box that I need to look at? <br /><br />Is there a way to test the components with a multimeter? <br /><br />Sorry about the faces, I just couldn't resist!<br />Thanks in advance for your help.<br /><br />Thanks<br />Drifty

 

[JB]

Re: Cylinder cuts out.

Hi, Drifty.<br /><br />You are dropping a cylinder. Could be fuel, could be ignition. Need to find out which.<br /><br />Squeeze your primer bulb. What happens?<br />Check both cylinders for spark AFTER the cylinder drops out.<br /><br />Let us know what you find.

 

[Drifty]

Re: Cylinder cuts out.

I squeezed the bulb and it made no difference. I am thinking along the lines of ignition but don't know how to check the system.

 

[Drifty]

Re: Cylinder cuts out.

I could try a new coil and swap it out and see if it does the trick, but I wanted to know if there was a better way to check the rest of the electronics on the ignition.<br /><br />I don't really know what the system consists of on that motor. Anyone know?