2005 YAMAHA YZ85 steering

5 - 48
CHAS
Bearing and bearing race
1. Wash the bearings and bearing races with
a solvent.
2. Inspect:

Bearing 1

Bearing race
Pitting/damage → Replace bearings and
bearing races as a set.
Install the bearing in the bearing races.
Spin the bearings by hand. If the bearings
hang up or are not smooth in their opera-
tion in the bearing races, replace bearings
and bearing races as a set.
5PA51510
EC565000
ASSEMBLY AND INSTALLATION
Lower bracket
1. Install:

Lower bearing 1
NOTE:
Apply the lithium soap base grease on the
bearing inner circumference.
5PA51520
2. Install:

Bearing race

Upper bearing 1
NOTE:
Apply the lithium soap base grease on the
bearing.
5PA51530
3. Install:

Lower bracket 1
NOTE:
Apply the lithium soap base grease on the
bearing.
5PA51540
STEERING

5 - 49
CHAS
4. Install:

Washer 1

Bearing race cover 2
5PA51550
5. Install:

Steering ring nut 1
Tighten the steering ring nut using the
steering nut wrench 2.
Refer to “STEERING HEAD INSPECTION
AND ADJUSTMENT” section in the CHAP-
TER 3.
5PA51560
T R..4 Nm (0.4 m · kg, 2.9 ft · lb)
6. Check the steering stem by turning it lock
to lock. If there is any binding, remove the
steering stem assembly and inspect the
steering bearings.
5PA51570
7. Install:

Front fork 1

Upper bracket 2
NOTE:

Temporarily tighten the pinch bolts (lower
bracket).

Do not tighten the pinch bolts (upper bracket)
yet.
5PA51580
8. Install:

Washer 1

Steering stem nut 2
5PAR0018
T R..125 Nm (12.5 m · kg, 90 ft · lb)
STEERING

5 - 50
CHAS
9. After tightening the nut, check the steering
for smooth movement. If not, adjust the
steering by loosening the steering ring nut
little by little.
10. Adjust:

Front fork top end a
Front fork top end (standard) a:
YZ85: 24 mm (0.94 in)
YZ85LW: Zero mm (Zero in)
5PA51600
11. Tighten:

Pinch bolt (upper bracket) 1

Pinch bolt (lower bracket) 2
CAUTION:
Tighten the lower bracket to specified
torque. If torqued too much, it may cause
the front fork to malfunction.5PA51610
T R..22 Nm (2.2 m · kg, 16 ft · lb)
T R..20 Nm (2.0 m · kg, 14 ft · lb)
STEERING