Honda CBR650 - Service manual > Steering stem

REMOVAL

CBR650F/FA:

Remove the following:

• Middle cowls
• Horn

Disconnect the ignition switch 2P (Brown) connector [1] and immobilizer receiver 4P (Black) connector [2].

Release the wire clips [3].

CBR650F/FA:

Remove the stopper ring [1].

Keep the reservoir upright to prevent air from entering the hydraulic system.

Loosen the pinch bolt [2] and remove the right handlebar [3] from the fork tube.

Remove the top bridge pinch bolt [4] and wire clamp [5].

Remove the left side in the procedure same as the right side.

CB650F/FA:

Remove the following:

• Headlight assembly
• Handlebar

Remove the bolt [1] and brake hose clamp [2] from the bottom bridge (CB650F only).

CB650F/FA:

Remove the two bolts [1], washers [2] and upper headlight stay [3] from the top bridge.

Remove the collars [4] from the upper headlight stay.

Remove the stem cap [1].

Loosen the steering stem nut [2].

Remove the fork legs.

Remove the following:

• Stem nut
• Washer [3]
• Top bridge [4]

Straighten the lock washer tabs [1].

Remove the lock nut [2] and lock washer.

Loosen the steering bearing adjustment nut [1] using the special tool.

TOOL:
[2] Steering stem socket 07916-3710101

While holding the steering stem, remove the adjustment nut and upper dust seal [3].

Remove the following:

• Steering stem [1]
• Upper inner race [2]
• Upper steering bearing [3]
• Lower steering bearing [4]

BEARING REPLACEMENT

Always replace the bearing and races as a set.

Remove the upper outer race using the special tools.

TOOLS:
Ball race remover set 07953-MJ10000

• [1] Remover attachment 07953-MJ10100
• [2] Remover shaft 07953-MJ10200

Remove the lower outer race using the special tool and a suitable shaft.

TOOL:
[1] Bearing remover 07946-3710500

Install the stem nut [1] onto the steering stem [2] to prevent the threads from being damaged when removing the lower inner race [3].

Remove the lower inner race with a chisel or equivalent tool, being careful not to damage the stem.

Remove the lower dust seal [4].

Install a new lower dust seal [1] onto the steering stem.

Press a new lower inner race [2] using the special tool.

TOOL:
[3] Steering stem driver 07946-MB00000

Drive in a new upper outer race [1] into the steering head pipe using the special tool.

TOOLS:
[2] Driver 07749-0010000
[3] Attachment, 42 x 47 mm 07746-0010300

Drive in a new lower outer race.

TOOLS:
Driver 07749-0010000
Attachment, 52 x 55 mm 07746-0010400

INSTALLATION

CBR650F/FA shown:

NOTE:

• Use urea based multi-purpose extreme pressure grease NLGI #2 (EXCELITE EP2 manufactured by KYODO YUSHI CO., LTD., STAMINA EP2 manufactured by Shell or equivalent) for the bearing race sliding surface and dust seals.

Apply grease to the lip of the lower dust seal [1].

Apply 3 - 5 g (0.1 - 0.2 oz) (per each bearing) of grease to the bearing race sliding surfaces.

Install the bearings [2] in the lower inner race and upper outer race.

Install the steering stem [3] and upper inner race [4].

Apply grease to the lip of a new upper dust seal [1].

Apply engine oil to the threads of the adjustment nut [2].

Install the upper dust seal and adjusting nut.

1. Tighten the adjustment nut [1] to the specified torque using the special tool.

TOOL:
[2] Steering stem socket 07916-3710101

TORQUE: 29 N*m (3.0 kgf*m, 21 lbf*ft)

2. Turn the steering stem left and right, lock-to-lock five times to seat the bearings.

3. Retighten the adjustment nut to the same torque.

TORQUE: 29 N*m (3.0 kgf*m, 21 lbf*ft)

Install a new lock washer [1], aligning its bent tabs with the grooves in the adjustment nut.

Install the lock nut [2] and finger tighten it all the way.

Do not over tighten the lock nut, this will flatten the lock washer.

Further tighten the lock nut, within 90º, to align its grooves with the tabs of the lock washer.

Bend the lock washer tabs [3] up into the grooves in the lock nut.

Clean the threads of the stem with a degreasing agent.

Install the top bridge [1], washer [2] and steering stem nut [3].

Do not tighten the top bridge pinch bolts.

Temporarily install the fork legs into the bottom and top bridges by tightening the bottom bridge pinch bolts.

Tighten the stem nut to the specified torque.

TORQUE: 103 N*m (10.5 kgf*m, 76 lbf*ft)

Make sure the steering stem moves smoothly, without play or binding.

Install the stem cap [4].

CBR650F/FA:

Install the top wire clamp [1] with the top bridge pinch bolt [2].

Install the fork legs properly.

Install the right handlebar [3] over the fork tube, aligning the boss with the groove in the top bridge.

Be sure the handlebar holder is fully seated on the top bridge. Push the handlebar forward to touch the boss against the inside of the groove, then tighten the pinch bolt [4] to the specified torque.

TORQUE: 27 N*m (2.8 kgf*m, 20 lbf*ft)

Install the stopper ring [5] into the groove in the fork tube.

Install the left side in the procedure same as the right side.

CBR650F/FA:

Connect the ignition switch 2P (Brown) connector [1] and immobilizer receiver 4P (Black) connector [2].

Install the two wire clips [3].

Install the following:

• Horn
• Middle cowls

CB650F/FA:

Install the upper headlight stay [1] to the top bridge with the collars [2], washers [3] and bolts [4].

Tighten the bolts securely.

CB650F/FA:

Install the brake hose clamp [1] to the bottom bridge with the bolt [2] and tighten it securely.

Install the following:

• Headlight assembly
• Handlebar

STEERING BEARING PRE-LOAD

Support the motorcycle securely using a hoist or equivalent and raise the front wheel off the ground.

Position the steering stem straight ahead. Hook a spring scale to the fork tube between the fork top and bottom bridges.

Make sure there is no cable, wire harness or hose interference.

Pull the spring scale keeping it at a right angle to the steering stem.

Read the scale at the point where the steering stem just starts to move.

STANDARD: 9.8 - 14.7 N (1.0 - 1.5 kgf, 2.2 - 3.3 lbf)

If the readings do not fall within the limits, readjust the steering bearing adjustment nut.

See also: