Water Pump Impeller Kit – Fits Yamaha 20/25/30 HP Outboards & Mariner 20/25/30 HP (Replaces 689-W0078-A6/689-W0078-A4) family-yamaha-f225nca2 Torque Bolts: Torque the mounting

Torque Bolts: Torque the mounting bolts to the manufacturer's specified value

V8 85-300 2-Stroke 1982-1992 5001594 All V-configuration engines

Remove the old thermostat and the surrounding gaskets or seals

Replace all four drain gaskets (90430-08020) on the lower unit drain plugs

Inspect the cylinder bore: Check for scoring

Water Pump Impeller Kit – Fits Yamaha 20/25/30 HP Outboards & Mariner 20/25/30 HP (Replaces 689-W0078-A6/689-W0078-A4) family-yamaha-f225nca2 Torque Bolts: Torque the mountingWater Pump Impeller Kit Fits Yamaha 20 25 30 HP & Mariner 20 25 30 HP Outboards This water pump impeller repair kit provides the necessary components for servicing the water pump on select Yamaha and Mariner 2 stroke outboards. It is designed to fit Yamaha 25 30 HP models from 19841997 (including C25, CV25, C30, CV30) and specific Mariner 20 30 HP models (20C, 25C, 30A) with corresponding serial numbers. This kit is a direct replacement for Yamaha