Yamaha KODIAK ULTRAMATIC YFM400FA Owner's Manual page 170

Do not mount an accessory where it could
interfere with your ability to control the
ATV. Examples include (but are not limited
to) a heavy or bulky object attached to the
handlebars which could make steering diffi-
cult, an accessory that limits your ability to
move around on the seat, or one that limits
your view.
Use extra caution when riding an ATV with
accessories. The ATV may handle different-
ly than it does without accessories.
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