Yamaha YZF-R1 Service Manual

– 3 –
2. Spark Plug Set (14B-R465B-70)
The spark creating portion of this spark plug is of a semi-surface discharge type of shape.
TIP
Since these spark plugs have a copper gasket, caution is needed during installation on
the following points.
1. The tightening torque is 12 – 15 N•m (1.2 – 1.5 kgf•m).
2. When not checking the torque, tighten by rotating through 30° after manual
tightening in the case of new plugs. When reusing plugs, tighten by rotating through
15°.
Parts List
No. PART No. PART NAMEQ’TY REMARKS
114B-1119C-70 PLUG, SPARK 4 NGK R0465B-10
(15˚)
(30˚)
Reused
New gasket

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