Honda BF50 (5HP) BF5A Outboard Motors Shop Manual., Page 77Get this manual
HONDA 3POWER TRAIN
Crankshaft rotation transmitted to the bevel gear and propeller shaft through the vertical shaft and pinion shaft
[I] CRANKSHAFT
[2] SHIFT LEVER
171 SHIFT ROD
[3] VERTICAL SHAFT
1 PINION SHAFT 4
[6] PROPELLER SHAFT
[5] BEVEL GEAR