Tohatsu 4 Stroke MFS 2/2.5/3.5A Outboards Service Manual, Page 89Get this manual

Power Unit 14) Inspection of Slinger
Splash Lubrication
Adopts splash lubrication system that is simple in structureSlinger is driven by the gear of crank shaft, and splashes oil collected in oil pan over the crank case partsCheck slinger for crack, damage and wearReplace if necessary

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