1972 50hp no fuel to #2 cylinder

1972 50 hp evinrude "selectiric" shift.<br />motor runs, idles, and shifts, but missfires. ive narrowed it down to the fact that number 2 cylinder isnt geting any fuel. not sure why. even if i spary it directly into the carb throat, it still doesnt FLY out the plug hole, like it does #1 cylinder.it will just puddle in the carb and puor out the front<br /><br />ive swapped carbs, top with bottom, and no difference.<br /><br />with carbs off, i can lightly push on reed valves and they open easily.<br /><br />compresion is 145 on both cylinders, cold.<br /><br />what can i be missing. ive rebuilt the carb about 4 times now, hoping to find a stuck float or anything out of the ordinary, but nuthing!!<br /><br />any ideas?<br /><br />mike

Re: 1972 50hp no fuel to #2 cylinder

Look for a pressure/vacuum leak in the crankcase or bypass passage, Mike. Might also be in the manifold/reed plate area.<br /><br />Good luck.

Re: 1972 50hp no fuel to #2 cylinder

Could be that the bottom crank seal is out too - you'd never know it until you pulled the head. <br />If you've got access to the bottom crankcase chamber, say through the fuel pump pulser or something, hook up a tube and blow through. Sometimes the problem gets really obvious when you do that. If the bottom crank seal is out, you may be looking for a new bottom crank bearing too.<br />Make sure the piston is up though!