Yamaha YZF-R1 1998 Service Manual

ENG
4 - 22
VALVES AND VALVE SPRINGS
Order Job/Part Q’ty Remarks
10 Exhaust valve lifter 12
11 Exhaust valve pad 12
12 Exhaust valve cotter 24
13 Exhaust valve upper spring seat 12
14 Exhaust valve spring 12
15 Exhaust valve oil seal 12
16 Exhaust valve lower spring seat 12
17 Exhaust valve 12
18 Exhaust valve guide 12
For installation, reverse the removal
procedure.

Yamaha YZF-R1 1998 Specifications

General

Bore x Stroke	74.0 mm x 58.0 mm
Compression Ratio	11.8:1
Maximum Power	150 hp @ 10, 000 rpm
Transmission	6-speed
Final Drive	Chain
Frame	Aluminum Deltabox
Front Brakes	Dual 298mm discs, 4-piston calipers
Front Tire	120/70 ZR17
Rear Tire	190/50 ZR17
Ignition	Digital
Rear Suspension	adjustable preload, compression and rebound damping
Rear Brakes	Single disc
Wheelbase	1, 395 mm
Seat Height	815 mm
Fuel Capacity	18 liters
Dry Weight	177 kg
Length	2, 065 mm (81.3 inches)
Width	720 mm (28.3 in)
Height	1, 105 mm
Ground Clearance	140 mm
Front Suspension	Telescopic fork