The location of the engine oil drain plug varies depending on the brand of engine. On most outboards, of the 90 hp class however, it is located on the starboard side, about midway up the exhaust housing.
it is on the rear of the engine below the engine. There is a rubber hose coming out of the motor and the drain plug is inside the rubber hose.
whereiscrank case oil drain plug on 1998 mercury 9.9 4 stroke
where is the drain oil plug on a 2010 9.9 mercury outboard motor
Changing the gear oil in a 4 stroke outboard, is the same proceedure as with the 2 stroke. Remove the drain plug, at bottom of gearcase, remove vent plug at top of gearcase and let drain. Fill from bottom, (drain plug hole), until lube runs out of top, (vent plug hole). While blocking off drain plug hole, to keep oil from draining, replace vent plug. Make sure that plug gaskets are in place and in serviceable condition. Quickly, replace the drain plug.
The size of the engine is not mentioned, but most Mercury outboard models situate the drain plug on the lower half of the port side cowling. Have your funnel and or drain pan ready when you remove that plug! Also be careful not to drop the sealing washer off of the plug, fwiw, the manufacturers recommend replacement of this washer.
The engine oil drain plug is on the bottom rear of the engine oil pan. The transmission does not have a drain plug, you remove the pan to drain.The engine oil drain plug is on the bottom rear of the engine oil pan. The transmission does not have a drain plug, you remove the pan to drain.
the oil that is in the oil filter will not drain from the oil pan plug but any oil in oil pan and engine will
The plug gap for a 9.9hp Mercury outboard, ( all models ), is .035 - .040in.
Drain at bottom of radiator so you can get antifreeze out.
You drain the engine oil from the drain plug on the bottom of the oil pan.You drain the engine oil from the drain plug on the bottom of the oil pan.
cobra outboard drive unit drain plug inner threads fell in unit
The correct spark plug gap for the 2004 model, 40 hp Mercury outboard 2 stroke is .040 in.