Periodic Maintenance Procedures
Install the steering stem head.
Torque - Steering Stem Head Nut: 108 N·m (11.0 kgf·m, 80
Upper Front Fork Clamp Bolts: 20 N·m (2.0 kgf·m,
Handlebar (see Handlebar Installation in the Steering
Install the holder [A] and tighten the bolt.
Check the steering again.
If the steering is still too tight or the too loose, repeat the
Install the removed parts (see appropriate chapters).
Steering Stem Bearing Lubrication
Remove the steering stem (see Steering, Stem Bearing
Removal 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 Steering, Stem Bearing In-
stallation in the Steering chapter).
Adjust the steering (see Steering Play Adjustment).
Spark Plug Condition Inspection
Spark Plugs (see Spark Plug Removal in the Electrical
Visually inspect the spark plugs.
If the spark plug center electrode [A] and/or side elec-
trode [B] are corroded or damaged, or if the insulator [C]
is cracked, replace the plug.
If the spark plug is dirtied or the carbon is accumulated,
replace the spark plug.
Measure the gap [D] with a wire-type thickness gauge.
If the gap is incorrect, replace the spark plug.
Spark Plug Gap:
Use the standard spark plug or its equivalent.
Standard Spark Plug:
1.0 ~ 1.1 mm (0.039 ~0.043 in.)
PERIODIC MAINTENANCE 2-41