Older 40 hp Mercury Mariner 2 stroke 4 cylinder - The engine ran the other day but now no fuel is getting to the carbs. When I prime the bulb I can hear air coming out of the carbs. What is the culprit?
Hi guys! I have a Mariner magnum 40 - when I squeeze the primer bulb gas squirts out of a screw on the front of the carburetor. See photo(the arrow points to the brass looking screw)
What needs to be adjusted?:)
I recently purchased a small boat with a Mercury Magnum 40 engine. The seller started the engine and after a couple of starts it seemed to work fine: he said 2 of the cylinders have great compression (don't know what that means). I know nothing about boats or outboard engines so I trusted what...