Routine maintenance is essential for keeping Yamaha AR250 jet boats from 2021 through 2023 operating reliably and performing as designed. The AR250 platform uses twin Yamaha marine engines paired with an advanced jet propulsion system engineered to run under sustained high-RPM conditions. Maintaining proper lubrication, airflow, ignition performance, and cooling system efficiency helps support dependable operation and long-term engine durability on the water.

This Yamaha boat service maintenance kit with cooling helps simplify routine service by grouping together the key components commonly required during scheduled upkeep. Yamaha jet boat service kits allow owners to perform essential maintenance tasks without sourcing individual parts separately, helping streamline oil service, filtration replacement, ignition system maintenance, and cooling system performance across both engines.

This kit applies to Yamaha AR250 boats from 2021 through 2023 and provides the maintenance components commonly required for routine service of the twin jet propulsion engine platform used in these boats.

---

What’s Included in This Kit

• LUB-10W40-WV-04 (Qty 2) - Two gallons of Yamalube 10W-40 Mineral 4W – marine-grade oil that clings to moving parts and pulls heat away during long, high-RPM runs.
• 69J-13440-04-00 (Qty 2) - Oil Filters with deep-pleat elements that trap fine metal and sludge that cheaper filters miss, keeping oil passages clear.
• 6S5-E4451-01-00 (Qty 2) - Air Filters with fresh pleated media that restores unrestricted airflow for crisp throttle response.
• NGK LFR6A (Qty 8) - Spark Plugs, factory-gapped for quick, reliable ignition after a winter lay-up.
• 6AP-R1321-10-00 (Qty 2) - Stainless Impellers that renew water-pump pressure, boosting circulation and safeguarding temps with cooling efficiency.
• ACC-FLDFU-NN-EL (Qty 1) - Disposable Yamaha funnel that keeps oil changes neat and your bilge spotless.
  

These components support routine engine maintenance procedures including oil changes, filtration replacement, ignition system upkeep, and cooling system service. Performing regular maintenance helps maintain proper lubrication, efficient cooling, and dependable performance for your Yamaha jet-powered boat.