Yamaha YZF-R1 Service Manual

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Damping Adjustment Method
Turn clockwise to increase the damping force and anticlockwise to reduce the damping force.
The adjustment range is:
Rebound : 1 to 25 steps back from the adjustor’s clockwise lightly tightened position.
Compression : 1 to 25 steps back from the adjustor’s clockwise lightly tightened position.
Shipping position
Rebound : 10 steps back from the tightened adjustor position.
Compression : 10 steps back from the tightened adjustor position.
NOTICE
When tightening the adjustor, do it lightly. Over-tightening the adjustor can damage it.

Yamaha YZF-R1 Specifications

General

Bore x Stroke	79.0mm x 50.9mm
Compression Ratio	13.0:1
Fuel System	Fuel injection with YCC-T and YCC-I
Final Drive	Chain
Front Tire	120/70ZR17
Rear Tire	190/55ZR17
Wheelbase	55.3 in
Fuel Capacity	4.5 gal
Curb Weight	448 lb
Width	27.2 in
Ground Clearance	5.1 in
Engine Type	Liquid-cooled inline 4-cylinder; DOHC, 4 valves per cylinder
Transmission	6-speed
Clutch	Multiplate slipper clutch
Front Suspension	43mm KYB® inverted fork; fully adjustable
Rear Suspension	KYB® single shock; fully adjustable
Front Brakes	Dual 320mm hydraulic disc; ABS
Rear Brakes	220mm hydraulic disc; ABS