Yamaha - Packing, lower casing - 69G-45315-A0-00 Yamaha F90 Outboard Lower Unit Assemblies GPS signals are sensitive to

GPS signals are sensitive to poor connectors and cheap wiring

A sterndrive depends on regular service

90387-16032-00 - COLLAR

• Durable Housing Construction – Built to handle constant water movement and internal pressure

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Yamaha - Packing, lower casing - 69G-45315-A0-00 Yamaha F90 Outboard Lower Unit Assemblies GPS signals are sensitive toYamaha Lower Casing Packing Sealing Gasket 69G 45315 A0 00 Overview This is one of those small parts that can cause big problems if its not doing its job. The lower casing packing seals up the gearcase area, keeping oil in and water out where it matters most. Ive seen perfectly good lower units take damage just because a seal like this was worn or reused too many times. When its fresh and seated right, you dont have to worry about whats happening