I'll try to make this short and sweet. I've got intermittent spark in one of the 4 cylinders of an 81 90hsp Evinrude. Sometimes I have spark during cranking with a spark tester, but do not have spark under load. I have switched plug wires, coils, and powerpacks and the problem has stayed in...
New here, hoping to gather some info. I have a 81 Evinrude 90 hp which has no power on the lake. Found that one of the 4 cylinders was not firing. Checked for spark, and all four had spark so I assumed a carb issue. Bought a carb kit, but before I started a rebuild I check for spark again---...