What year model johnson 150 model #J150gletg - Johnson Boating

https://www.themanualstore.com/Evinrude-Johnson-Outboard-Motor-Model-Year-Lookup-Guide-s/232.htm

https://goneoutdoors.com/determine-year-johnson-outboard-6908383.html

1972

1996

That serial number doesn't seem to match any of the formats I have found. The "CN" could indicate the year 1982. The "MN" could indicate manual-tilt and counter rotation.
From this resource: http://www.maxrules.com/OMC_models.html

To get the year of Johnson and Evinrude outboards use the word "INTRODUCES". Each letter corresponds to "1234567890" respectfully. It's best to check with a model year reference book, but this motor's model number contains "CC" which would indicate it's a '88.

First check kill switch,if ok then I suggest you pray

Looks like this may be a 1982 model. See... http://www.marineengine.com/parts/engine-model-guides/omc-johnson-evinrude-model-number-guide/omc-johnson-evinrude-model-number-guide-00002.html

Not knowing what year it is...Light and alarm? Reason: overheat low oil etc. check water flow..water pump. The motor is most likily going into S.L.O.W mode. its a fail safe system. Last possibile reason ..CDI box and or stator.. pull plugs check compression...should be 120-150 lbs.