Yamaha YZF-R1 1998 Service Manual

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ENG
TRANSMISSION
3.Check:
• shift fork movement
(along the shift fork guide bar)
Rough movement → Replace the shift
fork(-s) and shift fork guide bar as a
set.
EB413410
CHECKING THE SHIFT DRUM ASSEMBLY
1.Check:
• shift drum grooves
Damage/scratches/wear → Replace the
shift drum assembly.
• shift drum segment 1
Damage/wear → Replace the shift
drum assembly.
• shift drum bearing 2
Damage/pitting → Replace the shift
drum assembly.
EB413422
CHECKING THE TRANSMISSION
1.Measure:
• main axle runout
(with a centering device and dial
gauge 1)
Out of specification → Replace the
main axle.
Max. main axle runout
0.08 mm
2.Measure:
• drive axle runout
(with a centering device and dial
gauge 1)
Out of specification → Replace the
drive axle.
Max. drive axle runout
0.08 mm
3.Check:
• transmission gears
Blue discoloration/pitting/wear →
Replace the defective gear(-s).
• transmission gear dogs
Cracks/damage/rounded edges →
Replace the defective gear(-s).

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