50 hp 1974 running on 1 cylinder

reeldutch

Lieutenant
Joined
Feb 2, 2004
Messages
1,340
The outboard is a 1974 50 evinrude<br />and the top piston is not producing power.<br />first i thought it was gas related so i sprayed some mixture into the carbs troath the top carb and no change at all.<br />i sprayed some into the bottem one and the motor almost stalls out.<br />then i pulled the ignition wire on the top cylinder and no change if i pull the bottem one moter doesnt run at all.<br />then i checked for spark and the top plug has weak spark.<br /><br />now how can i figure out if its a bad pp or coil<br /><br />thanks reeldutch
 

jfm1

Petty Officer 1st Class
Joined
May 14, 2004
Messages
355
Re: 50 hp 1974 running on 1 cylinder

switch coils
 

REELSPORT

Petty Officer 1st Class
Joined
Apr 14, 2005
Messages
235
Re: 50 hp 1974 running on 1 cylinder

If switching coils does not work do a compression check
 
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