2000-2005 Yamaha F40B Outboard Service Manual, Page 278Get this manual
REMOVING THE PROPELLER Remove: Propeller
WARNING
Do not hold the propeller with your hands when removing or installing itBe sure to remove the battery leads from the batteries and the lanyard engine stop switchPut block of wood between the cavitation plate and propeller to keep the propeller from turning
CHECKING THE PROPELLER
Check: Blades Splines Cracksdamagewear
Replace