Yamaha TZR50 '03 Service Manual download pdf (Page 181)

CHAS

STEERING HEAD AND HANDLEBARS

7-35

2. Install:

• The bearings

Install the balls on the race and apply

more grease

3. Install:

• The steering axle

WARNING

Immobilise the steering axle until this is

fixed.

4. Tighten:

• The ring nut

Tightening steps:

• Tighten the annular nut using the wrench

for annular nuts

NOTE:

Couple the torque wrench to the wrench

for annular nuts so that these form a right

angle.

• Turn the steering 2 or 3 times

• Loosen the nut half a turn

• Tighten the annular nut again with the spe-

cial wrench

WARNING

Do not tighten excessively

Nº and dimensions of the balls:

19 units above / 1/4 inch

19 units below 1/4 inch

Wrench for annular nuts:

90890 - 01403

Ring nut (initial tightening):

3.8 kg • m

Wrench for annular nuts:

0.7 kg • m

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Yamaha TZR50 '03 Service Manual Page 181