Yamaha YZF-R1 1998 Service Manual

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SPEC
ENGINE TIGHTENING TORQUES
Item Fastener Thread size Q’ty
Tightening
torque
Remarks
Nm m·kgf
Spark plugs – M10 4 13 1.3
Cylinder head Nut M10 8 50 5.0
E
Cylinder head Cap nut M10 2 50 5.0
E
Cylinder head Bolt M6 2 12 1.2
Camshaft caps Bolt M6 28 10 1.0
E
Cylinder head cover Bolt M6 6 12 1.2
Oil passage check bolt Bolt M8 1 20 2.0
Cylinder head (exhaust pipe) Stud bolt M8 8 15 1.5
E
Connecting rod caps Nut M8 8 36 3.6
M
Generator rotor Bolt M10 1 95 9.5
E
Crankshaft sprocket Bolt M10 1 60 6.0
E
Cap bolt (timing chain tensioner) Bolt M6 1 10 1.0
Camshaft sprocket Bolt M7 4 24 2.4
Water pump inlet pipe Bolt M6 1 10 1.0
LT
Water pump outlet pipe Bolt M6 1 10 1.0
LT
Oil/water pump assembly driven
sprocket
Bolt M6 1 15 1.5
LT
Oil pump Bolt M6 1 10 1.0
Oil cooler Bolt M20 1 35 3.5
E
Engine oil drain bolt – M14 1 43 4.3
Oil strainer housing Bolt M6 2 10 1.0
LT
Oil/water pump assembly driven
sprocket cover
Bolt M6 1 10 1.0
LT
Oil pipe Bolt M6 1 10 1.0
LT
Oil filter bolt Bolt M20 1 70 7.0
Oil filter cartridge – M20 1 17 1.7
E
Exhaust pipes Nut M8 8 20 2.0
Muffler clamp Bolt M8 3 20 2.0
Exhaust pipe emission check bolts Bolt M6 4 10 1.0
EXUP valve pulley cover Bolt M6 3 10 1.0
LT
EXUP cable holder Bolt M8 2 10 1.0
Exhaust pipe bracket Bolt M8 1 20 2.0
Crankcase (cylinder head) Stud bolt M10 10 10 1.0
E
Crankcase Bolt M9 10 32 3.2
E
Crankcase Bolt M6 2 14 1.4
E
Crankcase Bolt M6 18 12 1.2
E
Crankcase Bolt M8 4 24 2.4
E
Generator rotor cover Bolt M6 9 12 1.2
Drive sprocket cover Bolt M6 5 10 1.0
TIGHTENING TORQUES

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