omc seadrive outboard 1.6l 2 carbs 1987 perhaps 84 not sure

[mandyb52]

I have rebuilt both carbs and was able to get it started also in gear back and forth.
Then took to water was able to go in gear for about 2 seconds then it stalled
sparks good vro pump good all looks good what should I do next any help out there?

 

[ezeke]

Re: omc seadrive outboard 1.6l 2 carbs 1987 perhaps 84 not sure

Compression test followed by spark test. All spark plugs out and grounded for both.

 

[mandyb52]

Re: omc seadrive outboard 1.6l 2 carbs 1987 perhaps 84 not sure

I know its dumb can u walk us through it step by step???
thanks new boat owners not got a clue but learning everyday!

 

[mandyb52]

Re: omc seadrive outboard 1.6l 2 carbs 1987 perhaps 84 not sure

can anyone tell me how to do the compression test?

 

[ezeke]

Re: omc seadrive outboard 1.6l 2 carbs 1987 perhaps 84 not sure

Get a screw in type compression gauge with a 14MM short head. Take all the spark plugs out and screw in the gauge to one of the holes. Crank the engine several turns and write down the reading. Do all 4 holes.

The cylinders are numbered top to bottom starting with one at the top right, two at the top left and so on.

Be consistent in the time given to cranking so you can compare the readings with each other.

You can ground the plug wires by pulling the emergency lanyard so they won't fire.

For a spark test, you want the ignition system to be free to run as fast as possible, so you take all the plugs out and use a tester that will allow you to set a gap of at least 3/8", preferably 7/16". You can purchase a single plug tester at an auto parts store with an adjustable gap. Ground the other plug wires to the engine block if you use this method.

Each wire should jump agap of 7/16" with a sharp blue snapping spark.

If the engine is running, you can test for spark using an inductive timing light.