50 hp 89-92 not sure no fuel to top cyl

kmac

Seaman
Joined
May 21, 2003
Messages
57
still not sure on year of motor. it was free and we are doing a lot of troubleshooting. problem 1. no fuel to top cylinder. problem 2. thought we could at least get a fire from number two cyl but not much seems like it is out of time. added fuel to number 1 and still no fire to either
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,757
Re: 50 hp 89-92 not sure no fuel to top cyl

With a project motor like this, and particularly if you don't know its maintenance history, attack the motor with a plan. Don't do it all piecemeal.<br /><br />Determine year/model.<br />Get manual.<br />Check compression. (Assuming this is good)<br />Rebuild fuel system. New hoses, primer bulb, fuel pump diaphram, clean out the gas tank, and rebuild carb(s).<br />So far you will have spent about $65 including the manual, and eliminated lots of problems, and possible questions.<br /><br />Check spark and diagnose suspect components. These get expensive, so correct diagnosis is important. If you don't mind spending some bucks to breath life into your engine, replace it, and know that you have newer more reliable parts.<br /><br />I wouldn't mess with the timing. It usually doesn't move on an outboard, unless someone moves it. Plus, it can't be set properly unless it is running.
 
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