It ensures a secure fit on the driveshaft and reduces the risk of hub failure during operation
A: Verify your engine is a Yamaha 60HP or 70HP 2-stroke model manufactured between 2004 and 2014
Clean the O-ring groove thoroughly to remove any debris
Yamaha Standard 40 2-Stroke 1995–2005 63D-W0078-01-00 Yamaha C40 40 2-Stroke 1997–2003 63D-W0078-01-00 Yamaha P40 40 2-Stroke 1998 63D-W0078-01-00 Yamaha Standard 50 2-Stroke 1998–2009 63D-W0078-01-00 Yamaha C50 50 2-Stroke 1998–2001 63D-W0078-01-00 Yamaha P50 50 2-Stroke 1995–1996 63D-W0078-01-00 Yamaha F40 40 4-Stroke 1999 63D-W0078-01-00 Yamaha F50 50 4-Stroke 1995–2009 63D-W0078-01-00 Yamaha F60 60 4-Stroke 2002–2009 63D-W0078-01-00
and housing as provided in the kit
Exhaust Bellows Expander Tool – Fits MerCruiser Alpha One, Bravo, Blackhawk (Replaces 91-45497A1) family-yamaha-40esd It ensures a secure fitExhaust Bellows Expander Tool Fits MerCruiser Alpha One, Bravo, Blackhawk (Replaces 91 45497A1) This specialized tool is designed to stretch the exhaust bellows for installation on a wide range of MerCruiser stern drives. It is compatible with models including the Alpha One, Alpha One Generation II, Bravo One, Bravo Two, Bravo Three, Blackhawk, MC 1, and R MR series. This tool is a direct replacement for Mercury MerCruiser part numbers 91 45497A1 and