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Nedenfor er det klippet ut fra siste versjon av Yamaha's "Maintenance Matters"
Anodes: Anodes intentionally corrode before your outboard does, in order to help protect it. Better known as “sacrificial anodes,” they are typically dull grey in color. On Yamaha outboards, they’re usually located on the lower unit just above the prop and on the bottom of the engine bracket. As corrosion occurs over time, they begin to “dissolve.” Replace them when they are about 50% gone with only high-quality, factory-recommended replacements. Don’t be fooled by lesser-quality imitations. There’s too much at stake here to risk it. Yamaha sacrificial anodes are made of a blend of high-quality alloys specifically designed to help protect your Yamaha outboard. Caution: Never paint or cover anodes in any way, as they must be in direct contact with the water in order to perform correctly. When exposed to the water (especially freshwater), they can become covered with a layer of organic growth (often referred to as “scum”). This is often so thin you won’t even notice it, but it can prevent an anode from doing its job. Therefore, during your regular washdown procedure, make sure to take a brush and some soap to the anodes to keep them clean and in direct contact with the water. This will help keep them working properly.
