2004 Official factory service manual for Yamaha YFZ450S ATV Quad., Page 103Get this manual
ADJUSTING THE REAR BRAKE ADJUSTING THE PARKING BRAKE 2Adjust: rear brake pedal height
aLoosen the locknut 1bTurn the adjusting bolt until the brake pedal height is within the specified limitscTighten the locknutNOTE: When adjusting the brake pedal height make sure the locknut-to-adjusting bolt clearance does not exceed 2.23.2 mm (0.090.13 in)_
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