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The 1998 model, 115 hp Yamaha outboard, requires an NGK BR8HS-10 spark plug, gapped to .039 in.
If not using oil injection, the 115 hp Yamaha outboard will require a 50:1 ratio.
What is this motor Yamaha 115 CETO 6E5 L 405125 U
Set the gap at .035 in. for a 115 Mercury.
If you look at the back side of your motor there is a little rubber spout that comes out about mid way down. This is where your drain plug is. best way is to have two people there with one ready to catch the oil in a bucket while the other removes the plug.
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 Suzuki 115 hp uses an NGK B8HS plug, gapped to .035in.
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winterize 2013 yamaha 4 stroke twin jet boat
248lbs is the weight of 115 hp chrysler outboard motor
The dry weight of a 1988 model, 115 hp Mercury outboard is 312 lbs.
does the lower unit need to be removed to replace the water pump on a 1995 Johnson 115 hp outboard engine