Honda CBR125RW - Service manual > Front Wheel/Suspension/Steering

COMPONENT LOCATION

SERVICE INFORMATION

GENERAL

• When servicing the front wheel, fork or steering stem, support the motorcycle using a safety stand or hoist.
• A contaminated brake disc or pad reduces stopping power. Discard contaminated pads and clean a contaminated disc with a high quality brake degreasing agent.
• After the front wheel installation, check the brake operation by applying the brake lever.
• Use only tires marked "TUBELESS" and tubeless valves on rim marked "TUBELESS TIRE APPLICABLE".

SPECIFICATIONS

TORQUE VALUES

Front brake disc bolt 42 N-m (4.3 kgf-m, 31 lbf-ft) ALOC bolt; replace with a new one.
Front axle nut 59 N-m (6.0 kgf-m, 44 lbf-ft) U-nut
Handlebar weight screw 9.0 N-m (0.9 kgf-m, 6.6 lbf-ft)
Handlebar pinch bolt 27 N-m (2.8 kgf-m, 20 lbf-ft)
Fork socket bolt 20 N-m (2.0 kgf-m, 15 lbf-ft) Apply locking agent to the threads.
Fork bolt 23 N-m (2.3 kgf-m, 17 lbf-ft)
Bottom bridge pinch bolt 27 N-m (2.8 kgf-m, 20 lbf-ft)
Top bridge pinch bolt 23 N-m (2.3 kgf-m, 17 lbf-ft)
Steering stem adjusting nut -
Steering stem nut 88 N-m (9.0 kgf-m, 65 lbf-ft)
Front brake caliper mounting bolt 30 N-m (3.1 kgf-m, 22 lbf-ft) ALOC bolt; replace with a new one.
Clutch lever pivot bolt 1.0 N-m (0.1 kgf-m, 0.7 lbf-ft)
Clutch lever pivot nut 6.0 N-m (0.6 kgf-m, 4.4 lbf-ft)

TOOLS

TROUBLESHOOTING

Hard steering

• Steering stem adjusting nut too tight
• Damaged steering head beatings
• Insufficient tire pressure
• Faulty tire

Steers to one side or does not track straight

• Bent fork pipe
• Bent axle
• Worn wheel bearing
• Unequal fork fluid quantity in each fork pipe
• Faulty steering head bearing
• Bent frame
• Faulty wheel bearing
• Weak front fork
• Loose steering stem adjusting nut

Front wheel wobbling

• Bent rim
• Worm wheel bearing
• Faulty tire
• Insufficient tire pressure
• Axle not tightened properly
• Unbalanced tire and wheel

Wheel hard to turn

• Faulty wheel bearing
• Faulty speedometer gear
• Bent axle
• Brake drag

Soft suspension

• Weak fork spring
• Insufficient fork fluid
• Insufficient tire pressure
• Incorrect fork fluid viscosity

Stiff suspension

• Incorrect fork fluid viscosity
• Bent fork pipe
• Clogged fork fluid passage
• Damaged fork pipe and/or fork slider
• Fork pipe binds
• High tire pressure

Front suspension noisy

• Insufficient fork fluid
• Loose fork fasteners
• Bent fork pipe

• Handlebars
• Front Wheel
• Fork
• Steering Stem

See also: