Yamaha KODIAK 450 YFM450FAS Owner's Manual page 378

WARNING
_
Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability
which could lead to an accident.
After servicing:
G
Make sure the brakes operate smoothly
and that the free play is correct.
G Make sure the brakes do not drag.
G Make sure the brakes are not spongy. All
air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
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