76 Johnson 135 hard start after warm

[nofatchiks]

I picked up 18' Doral last year with a 76 Johnson 135 on it and have had nothing but issues with the motor.
Fires up no problem when cold, run it on the lake for a bit and seems like it's lacking power. Bring it to an idle and it stalls and is difficult to start back up especially coming into the marina.
Cleaned the carb and replaced the coils and plugs. I think it may be the coil module? Any help would be greatly appreciated

 

[Boobie]

First, check your compression. Second, check your spark when it quits. It should jump a 7/16" open air gap on a tester.