2001-2014 Honda BF/BFP8D, BF/BFP9.9D Outboards Shop Manual, Page 72Get this manual
SFBO-SF9.90 5) Remove the shift spring and clutch shifter from the propeller shaft
SHIFT SPRING
PROPELLER SHAFT
CLUTCH SHIFTER
INSPECTION
CLUTCH SHIFTER
Check the clutch dogs for wear or damage
CLUTCH DOGS
PROPELLER SHAFT
Measure the .0of the propeller shaft
FORWARD BEVEL GEAR
Standard 16.97316.984 mm (0 .66820.6687 in)