Headstock re-assembly (Aprilia RS125/3)
- Main
- Aprilia
- RS-series
- RS 125 [3]
- Running gear and frame
- Front suspension and handlebar
- Headstock re-assembly
Read 1.2.1 carefully.
Torque wrench settings:
Fit the bearing (1) to the top end of the steering tube using the drift.
Position the washer (2) and the oil seal (3) in the order.
Fit the bearing (4) to the bottom end of the steering tube using the drift.
Position the bottom dust seal (5).
Grease the steering stem and install the bottom yoke and steering stem (6); see 1.8.1.
Before finally tightening the adjusting ring, turn the steering in both directions repeatedly. This will allow the bearings to seat themselves properly.
Adjust play in the bearings; see 2.16.1.
Turn the handlebars to ensure that cables and hoses do not bind. Ensure that cables and hoses are not twisted or twisted around one another.
Lower the hoist arm.
Install the brake caliper to the brake disc.
Install the mudguard; see 7.1.10.
Detach the slings from the frame.
Install the air scoop; see 7.1.17.
Install the front fairing.
Torque wrench settings:
- Brake caliper mounting bolts: 22 Nm (2.2 kg·m)
Note. Make sure to have a drift with the same diameter as the bearing outer ring available.
Fit the bearing (1) to the top end of the steering tube using the drift.
Position the washer (2) and the oil seal (3) in the order.

Fit the bearing (4) to the bottom end of the steering tube using the drift.
Position the bottom dust seal (5).
Grease the steering stem and install the bottom yoke and steering stem (6); see 1.8.1.

Before finally tightening the adjusting ring, turn the steering in both directions repeatedly. This will allow the bearings to seat themselves properly.
Adjust play in the bearings; see 2.16.1.
Turn the handlebars to ensure that cables and hoses do not bind. Ensure that cables and hoses are not twisted or twisted around one another.
Lower the hoist arm.
Warning! Ensure that the rear wheel stand (OPT) is positioned correctly before removing the slings.
Install the brake caliper to the brake disc.
Install the mudguard; see 7.1.10.
Detach the slings from the frame.
Install the air scoop; see 7.1.17.
Install the front fairing.
See this article in russian language
This article has been reviewed: Artemy Kuzmin
Similar articles about motorcycles of other brands
Transmission assembly Suzuki DRZ 250 (1996-2007)Pistons — disassembly and assembly Triumph Rocket III (2004-2018)
Adjusting the Shock Absorber Assembly Yamaha FZ1 Fazer (2006-2015)
Carburetor — assembly Kawasaki ZX6R/ZX600J (2000-2002)
Radiator electric fan — removal, disassembly, assembly and… Honda CB 400 SF (1992-1999)
Link to this article in different formats
Comments and feedback from visitors
No comments yet, you will be the first!
- Information for owner
- Introduction to manual
- Maintenance
- Troubleshooting
- Engine and systems
- Engine repair
- Fuel system
- Cooling and lube system
- Running gear and frame
- Frame and hinged elements
- Front suspension and handlebar
- Rear suspension
- Brake system
- Wheels and tires
- Electric equipment
- Equipment and devices
- Starting and charging system
