Yamaha YZF-R1 1998 Service Manual

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ENG
OIL PAN AND OIL PUMP
3.Check:
• oil pump operation
Unsmooth → Repair or replace the
defective part(-s).
Refer to “WATER PUMP” in chapter 5.
EB411410
CHECKING THE RELIEF VALVE
1.Check:
• relief valve body 1
• relief valve 2
• spring 3
• O-ring 4
Damage/wear → Replace the defective
part(-s).
EB411421
CHECKING THE OIL DELIVERY PIPE AND
OIL PIPE
1.Check:
• oil delivery pipe 1
• oil pipe 2
Damage → Replace.
Obstruction → Wash and blow out
with compressed air.
EB411430
CHECKING THE OIL STRAINER
1.Check:
• oil strainer 1
Damage → Replace.
Contaminants → Clean with engine oil.
EB411701
ASSEMBLING THE OIL PUMP
1.Lubricate:
• inner rotor
• outer rotor
• impeller shaft
(with the recommended lubricant)
Recommended lubricant
Engine oil

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