Honda FR500 Owner's Manual page 28

Handlebar Height Adjustment
CAUTION:
Before adjusting the handlebar, place
the tiller on firm level ground to prevent the handle
from falling accidentally.
To adjust the handlebar height, loosen the adjuster
knob, select the appropriate holes in the handle
column and handlebar bracket, and tighten the
knob.
(1) Height adjuster knob
Handlebar Angle Adjustment
The handle can be adjusted at two different angles
in either direction. To adjust, loosen the angle
adjuster and move the column. After adjustment, be
sure to tighten the a,djuster securely.
(2) Angle adjuster
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