2-40 PERIODIC MAINTENANCE
Install the claw washer [A] so that its bent side [B] faces
upward, and engage the bent claws with the grooves of
stem locknut [C].
Hand tighten the stem locknut until it touches the claw
Tighten the stem locknut clockwise until the claws are
aligned with the grooves (ranging from 2nd to 4th) of stem
nut [D], and bend the 2 claws downward [E].
Torque - Upper Front Fork Clamp Bolts: 20 N·m (2.0 kgf·m,
Handlebar Bolts: 25 N·m (2.5 kgf·m, 18 ft·lb)
Steering Stem Head Nut: 78 N·m (8.0 kgf·m, 58
Check the steering again.
If the steering is still too tight or too loose, repeat the ad-
Steering Stem Bearing Lubrication
Remove the steering stem (see Stem, Stem Bearing Re-
moval in the Steering chapter).
Using a high-flash point solvent, wash the upper and
lower ball bearings in the cages, and wipe the upper and
lower outer races, which are press-fitted into the frame
head pipe, clean off grease and dirt.
Visually check the outer races and the ball bearings.
Replace the bearing assemblies if they show wear or
Pack the upper and lower ball bearings [A] in the cages
with grease, and apply a light coat of grease to the upper
and lower outer races.
Install the steering stem (see Stem, Stem Bearing Instal-
lation in the Steering chapter).
Adjust the steering (see Steering Play Adjustment in this
Spark Plug Clean and Gap Inspection
Remove the spark plug (see Spark Plug Replacement in
this chapter), and visually inspect.
Clean the spark plug, preferably in a sandblasting device,
and then clean off any abrasive particles. The plug may
also be cleaned using a high-flash point solvent and a wire
brush or other suitable tool.
If the spark plug electrodes are corroded or damaged,
or if the insulator is cracked, replace the plug. Use the
standard spark plug or its equivalent.