Yamaha DT501988 Owner's Manual page 12

a. Accessories fitted to the handlebar or the front fork area can create in-
stability due to improper weight distribution or aerodynamic changes. If
accessories are added to the handlebar or front fork area, they must be
as light weight as possible and should be kept to a minimum.
b. Bulky or large accessories may seriously affect the stability of the mo-
torcycle due to aerodynamic effects. Wind may attempt to lift the mo-
torcycle, or the motorcycle may become unstable in cross winds. These
accessories may also cause instability when being passed by or passing
large vehicle.
c. Certain accessories can displace the operator from his or her normal riding
position. This improper position limits the freedom of movement of the
operator and may limit control ability. Therefore such accessories are
not recommended.
2. Caution must be used if adding electrical accessories. If these accessories
exceed the capacity of motorcycle's electrical system, an electric failure could
result, which could cause a dangerous loss of lights or engine power.