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Yamaha | 20 Hour Service Kit | F25 | 1998-1999

Complete your Yamaha F25 20 hour break-in service with a maintenance kit built around Yamalube 20W-40 FC-W outboard engine oil. Designed specifically for Yamaha F25 outboards produced from 1998 through 1999, this kit includes the essential components needed for engine oil replacement, lower unit service, and primary fuel filtration.

The 20 hour service is an important early milestone that helps support long-term engine durability. Replacing engine oil and the oil filter removes initial wear particles, while servicing the lower unit with fresh gear lube and new drain gaskets helps maintain proper lubrication and sealing. This bundled kit ensures you have the correct components on hand to complete routine maintenance efficiently.

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What’s Included in This Kit

• 2 x LUB-20W40-FC-12 – Yamalube 20W-40 Outboard Mineral 4M FC-W Engine Oil (Quart)
• 1 x 3FV-13440-30-00 – Yamaha Outboard Oil Filter
• 1 x 65W-24251-10-00 – Yamaha Primary Fuel Filter Element
• 1 x ACC-GEARL-UB-QT – Yamalube Marine Gear Case Lube Oil (32 oz.)
• 2 x 90430-08003-00 – Yamaha Outboard Lower Unit Drain Gaskets
• 1 x 90430-14M09-00 – Yamaha Oil Plug Drain Gasket
• 1 x ACC-PUMP0-00-QT – Yamaha Gear Lube Pump

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Why This Kit Matters

• Break-in protection: Fresh 20W-40 oil and a new filter help protect internal engine components.
• Correct oil capacity: Two quarts provide appropriate oil volume for F25 service.
• Fuel system support: A new primary fuel filter element helps maintain clean fuel delivery.
• Lower unit protection: Fresh gear lube supports smooth shifting and gear longevity.
• Secure sealing: New drain gaskets help prevent leaks after fluid service.

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Service Notes

• Designed for Yamaha F25 outboards produced from 1998 through 1999.
• Replace drain gaskets during each service interval to maintain proper sealing.
• Use the included pump to simplify lower unit gearcase filling.
• Dispose of used oil and gear lube according to local environmental regulations.

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FAQ

Is this kit correct for all 1998–1999 Yamaha F25 models?
Yes. This kit is configured specifically for Yamaha F25 outboards produced during those years.

Does this include enough oil for a complete oil change?
Yes. Two quarts of Yamalube 20W-40 meet the typical oil capacity requirements for F25 maintenance.