Yamaha YZ450F(Y), Owner'S Manual

Page: 156 / 190

5-25
HANDLEBAR
REMOVING THE BRAKE MASTER
CYLINDER
1. Remove:
• Brake master cylinder bracket "1"
• Brake master cylinder "2"
• Do not let the brake master cylin-
der hang on the brake hose.
• Keep the brake master cylinder cap side horizontal to prevent air
from coming in.
REMOVING THE GRIP 1. Remove:
• Grip "1"
Blow in air between the handlebar or
tube guide and the grip. Then remove
the grip which has become loose.
CHECKING THE HANDLEBAR
1. Inspect: • Handlebar "1"
Bends/cracks/damage → Re-
place.
Do not attempt to straighten a bent
handlebar as this may dangerous-
ly weaken the handlebar.
INSTALLING THE HANDLEBAR 1. Install:
• Handlebar lower holder "1"
• Washer "2"
• Nut (handlebar lower holder) "3"
• Be sure the side of the handlebar
lower holder having the greater dis-
tance "a" from the mounting bolt
center faces forward. And install it
in the hole "b" in the rear of the up-
per bracket.
• Apply the lithium soap base grease on the thread of the handlebar low-
er holder.
• Change in the direction back to front and installing position of the
handlebar lower holder allows the
front-to-rear offset amount of the
handlebar position to be changed.
• Do not tighten the nut yet.
A. Forward 2. Install:
• Handlebar "1"
• Handlebar upper holder "2"
• Bolt (handlebar upper holder) "3"
• The handlebar upper holder should
be installed with the punched mark
"a" forward.
• Install the handlebar so that the
marks "b" are in place on both
sides.
• Install the handlebar so that the pro- jection "c" of the handlebar upper
holder is positioned at the mark on
the handlebar as shown.
• First tighten the bolts on the front
side of the handlebar upper holder,
and then tighten the bolts on the
rear side.
3. Tighten:
• Nut (handlebar lower holder) "1"
4. Install:
• Left grip "1"
Apply the adhesive to the handle-
bar "2".
• Before applying the adhesive, wipe
off grease or oil on the handlebar
surface "a" with a lacquer thinner.
• Install the left grip to the handlebar
so that the line "b" between the two
arrow marks faces straight upward.
Bolt (handlebar upper
holder):
28 Nm (2.8 m•kg, 20
ft•lb)
Nut (handlebar lower
holder):
34 Nm (3.4 m•kg, 24
ft•lb)