Water Pump Impeller Kit – Fits Yamaha F75-F100 Outboard Motors (Replaces 61A-W0078-A3-00) family-tohatsu-m2-5 Test the cooling system by

Test the cooling system by running the engine with a flush attachment or in the water

A: Like any propeller guard

You will need to provide fresh gear oil separately for lower unit servicing

Shift the outboard into neutral to facilitate removal of the lower unit (gearcase)

Water Pump Impeller Kit – Fits Yamaha F75-F100 Outboard Motors (Replaces 61A-W0078-A3-00) family-tohatsu-m2-5 Test the cooling system byWater Pump Impeller Kit Fits Yamaha F75 F100 Outboard Motors (Replaces 61A W0078 A3 00) This water pump impeller service kit is designed for Yamaha F75, F80, F90, and F100 4 Stroke outboard engines manufactured between 1999 and 2013. Please refer to the detailed model list below to ensure an exact match for your engine. This kit serves as a direct replacement for Yamaha OEM part numbers 61A W0078 A3 00, 61A W0078 A2 00, and 61A W0078 A4 00, as well as