Honda CRF50F Owner's Manual page 19

Loading, Accessories & Modifications
Modifications
We strongly advise you not to remove any
original equipment or modify your motorcycle
in any way that would change its design or
operation. Such changes could seriously impair
your motorcycle's handling, stability, and
braking, making it unsafe to ride.
We also advise you not to make any
modifications or remove any equipment (such
as the USDA qualified spark arrester or
emission control system components) that
would make the motorcycle illegal in your area.
11
Motorcycle Safety