1979 80hp Mercury outboard no running

[fillinholes]

Can someone help me! I am mechanically inclined!!! have spark, have good comp. and even when adding fuel directly into the cylinders my engine will still not fire????? Yes primer ball gets hard. I ran it dry in the fall, it ran fine when I put it away. Fuel filter is clean. wont fire or run.

I still confused as to my original question..all things aside Spark, compression and fuel...but no BANG???

 

[jbcurt00]

Please check your PMs

 

[Chris1956]

If you have spark, compression and fuel, and she won't fire, either your timing is off, or you really don't have spark.

 

[fillinholes]

The Spark looked weak and it is those flat plugs. its the thunderbolt ignition. Can I put in regular plugs? I suppose I could try one and rotate it manually and see if they touch. I wouldn't suspect my timing would change on its own during the winter..