I can’t get my cylinder to fire

1990 johnson

Cadet
Joined
Jul 29, 2020
Messages
8
I have a 1990 johnson gt 100 outboard

my top left cylinder won’t fire. I have new plugs and ignition coil.. I get a spark but doesn’t ignite.. I checked the gas line to that cylinder and gas is coming out of the line.. the carb was super clean.. don’t understand why the cylinder won’t fire! I get 105 compression in that cylinder aswell
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
36,047
Does the spark on that cylinder jump a gap of 7/16" or more , yes or no ?-----Checked the reed valves ?
 
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