Honda BF20 BF2A Outboard Motors Manual, Page 49Get this manual
HONDA BFSOBFSA
BEVEL PINIONVERTICAL SHAFT
[3]BEVEL PINION
[VERTICAL SHAFT REASSEMBLY: After installing the propeller shaft in the gear case, slide the pinion thrust washer and bevel pinion onto the vertical shaft and secure with mm E-ring, [31-1
[21 mm E-RING
131 -2 WASHER
Check the vertical shaft, bevel pinion and propeller shaft for smooth rotationSHAFT