Cylinder won’t ignite

[1990 johnson]

I have a 1990 johnson gt 100 fuel injected 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]

Oil injected but not fuel injected !!-------Check the reed valves.--------Check the high speed jets found INSIDE the carburetor bowl.----Does spark jump a gap of 7/16" on a test device , yes or no ?

 

[1990 johnson]

I’m new to this! The gas and oil have there own tanks..
I checked the jets there clean.. I don’t have anything to test the gap for a spark.. but I will check the reed values

 

[Bosunsmate]

Put your gas into a glass, see if it separates out some water.
Also see if your spark plug tips are wet or not. If they are wet see if they light with a lighter. If they do your spark is probably bad

 

[Crosbyman]

spark tester = screwdriver


stick a screwdriver flat blade in the boots and hold 3/8 inches away from the engine frame while your buddy starts the engine

do not fire the plugs in open air leave other plug wires connected as you test each one spark tester are not expensive see amazon


https://www.amazon.ca/Thexton-THE40...&keywords=spark+tester&qid=1596114544&sr=8-17