1999 YAMAHA YZF-R7 Owners Manual

CHASSIS SPECIFICATIONS
SPEC

2 - 11
CHASSIS SPECIFICATIONS
Item Standard Limit
Frame
Frame type Diamond ----
Caster angle 22.7˚ ----
Trail 95 mm (3.74 in) ----
Front wheel
Wheel type Cast wheel ----
Rim
Size 17
´
MT3.50 ----
Material Aluminum ----
Wheel travel 120 mm (4.72 in) ----
Wheel runout
Maximum radial wheel runout ---- 1 mm
(0.04 in)
Maximum lateral wheel runout ---- 0.5 mm
(0.02 in)
Rear wheel
Wheel type Cast wheel ----
Rim
Size 17
´
MT6.00 ----
Material Aluminum ----
Wheel travel 138 mm (5.43 in) ----
Wheel runout
Maximum radial wheel runout ---- 1 mm
(0.04 in)
Maximum lateral wheel runout ---- 0.5 mm
(0.02 in)
Front tire
Tire type Tubeless ----
Size 120/70 ZR17 (58W) ----
Model (manufacturer) MTR01A (PIRELLI) ----
Tire pressure (cold)
0 ~ 90 kg (0 ~ 198 lb) 250 kPa (2.5 kg/cm
2

, 3.6 psi) ----
90 kg (198 lb) ~ Maximum load* 250 kPa (2.5 kg/cm
2

, 3.6 psi) ----
High-speed riding 250 kPa (2.5 kg/cm
2

, 3.6 psi) ----
* Load is the total weight of the rider
and accessories.
Minimum tire tread depth ---- 1.6 mm
(0.06 in)

CHASSIS SPECIFICATIONS
SPEC

2 - 12
Rear tire
Tire type Tubeless ----
Size 180/55 ZR17 73W ----
Model (manufacturer) MTR08 (PIRELLI) ----
Tire pressure (cold)
0 ~ 90 kg (0 ~ 198 lb) 250 kPa (2.5 kg/cm
2

, 3.6 psi) ----
90 kg (198 lb) ~ Maximum load* 290 kPa (2.9 kg/cm
2

, 4.1 psi) ----
High-speed riding 250 kPa (2.5 kg/cm
2

, 3.6 psi) ----
* Load is the total weight of the rider
and accessories.
Minimum tire tread depth ---- 1.6 mm
(0.06 in)
Front brakes
Brake type Dual-disc brake ----
Operation Right-hand operation ----
Recommended fluid DOT 4 ----
Brake discs
Diameter ´ thickness 320 ´ 5 mm (12.6 ´ 0.20 in) ----
Minimum thickness ---- 4.5 mm
(0.18 in)
Maximum deflection ---- 0.1 mm
(0.004 in)
Brake pad lining thickness 5.5 mm (0.22 in) 0.5 mm
(0.02 in)
Master cylinder inside diameter 14 mm (0.55 in) ----
Caliper cylinder inside diameter 30.2 mm (1.19 in) and 27 mm (1.06 in) ----
Rear brake
Brake type Single-disc brake ----
Operation Right-foot operation ----
Brake pedal position (from the top
of the brake pedal to the center of
the rider footrest bracket bolt)31~ 36 mm (1.22 ~ 1.42 in) ----
Recommended fluid DOT 4 ----
Brake discs
Diameter ´ thickness 245 ´ 5 mm (9.65 ´ 0.20 in) ----
Minimum thickness ---- 4.5 mm
(0.18 in)
Maximum deflection ---- 0.1 mm
(0.004 in)
Brake pad lining thickness 5.5 mm (0.22 in) 0.5 mm
(0.02 in)
Master cylinder inside diameter 12.7 mm (0.5 in) ----
Caliper cylinder inside diameter 38.2 mm (1.50 in) ----Item Standard Limit

CHASSIS SPECIFICATIONSSPEC
2 - 13
Front suspension
Suspension type Telescopic fork ----
Front fork type Coil spring/oil damper ----
Front fork travel 120 mm (4.72 in) ----
Spring
Free length 240 mm (9.45 in) ----
Spacer length 127 mm (5.00 in) ----
Installed length 226 mm (8.90 in) ----
Spring rate (K1) 9.3 N/mm (0.95 kgf/mm, 53.2 lb/in)
Spring stroke (K1) 0 ~ 120 mm (0 ~ 4.72 in) ----
Optional spring available No ----
Fork oil
Recommended oil Suspension oil “01” or equivalent ----
Quantity (each front fork leg) 460 cm
3 (16.2 Imp oz, 15.6 US oz) ----
Level (from the top of the outer
tube, with the outer tube fully
down, and without the fork
spring)170 mm (6.69 in) ----
Damper adjusting rod locknut dis-
tance31 mm (1.22 in) ----
Spring preload adjusting positions
Minimum 0 [0 mm ( 0 in)] ----
Standard 14 [14 mm (0.55 in)] ----
Maximum 18-1/2 [18.5 mm (0.73 in)] ----
Rebound damping adjusting posi-
tions
Minimum* 17 ----
Standard* 6 ----
Maximum* 1 ----
Compression damping adjusting
positions
Minimum* 20 ----
Standard* 6 ----
Maximum* 1 ----
* from the fully turned-in positionItem Standard Limit

CHASSIS SPECIFICATIONSSPEC
2 - 14
Steering
Steering bearing type Angular ball bearings ----
Rear suspension
Suspension type Swingarm (link suspension) ----
Rear shock absorber assembly
typeCoil spring/gas-oil damper ----
Rear shock absorber assembly
travel63 mm (2.48 in) ----
Spring
Free length 160 mm (6.30 in) ----
Installed length 146 mm (5.75 in) ----
Spring rate (K1) 95 N/mm (9.69 kgf/mm, 543 lb/in) ----
Spring stroke (K1) 0 ~ 63 mm (0 ~ 2.48 in) ----
Optional spring available No ----
Standard spring preload gas/air
pressure 1,200 kPa (12 kgf/cm
2, 171 psi) ----
Spring preload adjusting positions
Minimum 0 [11 mm (0.43 in)] ----
Standard 6 [14 mm (0.55 in)] ----
Maximum 20 [21 mm (0.84 in)] ----
Rebound damping adjusting posi-
tions
Minimum* 50 ----
Standard* 10 ----
Maximum* 0 ----
Compression damping adjusting
positions
Minimum* 25 ----
Standard* 10 ----
Maximum* 0 ----
* from the fully turned-in position
Swingarm
Free play (at the end of the swing-
arm)
Radial ---- 1 mm
(0.04 in)
Axial ---- 1 mm
(0.04 in)
Drive chain
Model (manufacturer) 50ZVM (DAIDO) ----
Link quantity 118 ----
Drive chain slack 40 ~ 50 mm (1.57 ~ 1.97 in) ----
Maximum ten-link section 150.1 mm (5.91 in) ----Item Standard Limit

ELECTRICAL SPECIFICATIONSSPEC
2 - 15
ELECTRICAL SPECIFICATIONS
Item Standard Limit
System voltage12 V ----
Ignition system
Ignition system type C.D.I. ----
Ignition timing 5˚ BTDC at 1,100 r/min ----
Advanced timing 55˚ BTDC at 5,000 r/min ----
Advancer type Throttle position sensor and electrical ----
Pickup coil resistance/color 421 ~ 569 W / Gy–B ----
C.D.I. unit model (manufacturer) F8T19371 (MITSUBISHI) ----
Ignition coils
Model (manufacturer) F6T549 (MITSUBISHI) ----
Minimum ignition spark gap 6 mm (0.24 in) ----
Primary coil resistance 0.16 ~ 0.21 W ----
Secondary coil resistance 5.0 ~ 6.8 kW ----
Throttle position sensor standard
resistance4 ~ 6 kW----
Charging system
System type AC magneto ----
Model (manufacturer) F4T254 (MITSUBISHI) ----
Nominal output 14 V / 22.5 A at 5,000 r/min ----
Stator coil resistance 0.38 ~ 0.46 W at 20˚C (68˚F) ----
Rectifier/regulator
Regulator type Semiconductor-short circuit ----
Model SH650D-11 (SHINDENGEN) ----
No-load regulated voltage 14.1 ~ 14.9 V ----
Capacity 18 A ----
Withstand voltage 200 V ----
Battery
Battery type GT9B-4 ----
Battery voltage/capacity 12V / 8AH ----
Headlight typeHalogen bulb
Indicator light type ´ quantityLED ´ 5
Bulbs (voltage/wattage ´ quantity)
Headlight R. 12 V 60 W ´ 1 / L. 12 V 51 W ´ 1 ----
Auxiliary light 12 V 5 W ´ 2 ----
Tail/brake light 12 V 5 W / 21 W ´ 1 ----
Front turn signal light 12 V 21 W ´ 2 ----
Rear turn signal light 12 V 21 W ´ 2 ----
Meter light 12 V 1.4 W ´ 2 ----

ELECTRICAL SPECIFICATIONSSPEC
2 - 16
Electric starting system
System type Constant mesh ----
Starter motor
Model (manufacturer) SM-14 (MITSUBA) ----
Power output 0.6 kW ----
Armature coil resistance 0.0015 ~ 0.0025 W----
Brushes
Overall length 10 mm (0.40 in) 3.5 mm
(0.14 in)
Spring force 7.16 ~ 9.52 N
(730 ~ 971 gf, 25.8 ~ 34.3 oz)----
Commutator resistance 0.025 ~ 0.035 W----
Commutator diameter 28 mm (1.10 in) 27 mm
(1.06 in)
Mica undercut 0.7 mm (0.03 in) ----
Starter relay
Model (manufacturer) MS5F-631 (JIDECO) ----
Amperage 180 A ----
Coil resistance 4.18 ~ 4.62 W ----
Horn
Horn type Plain ----
Model (manufacturer) ´ quantity YF-12 (NIKKO) ´ 1 ----
Max. amperage 3 A ----
Turn signal relay
Relay type Full-transistor ----
Model (manufacturer) FE246BH (DENSO) ----
Self-cancelling device built-in No ----
Turn signal blinking frequency 75 ~ 95 cycles/min. ----
Wattage 21 W ´ 2 + 3.4 W ----
Oil level switch model (manufac-
turer)071380-0480 (DENSO) ----
Fuel pump relay model (manufac-
turer)G8R-30Y-J (OMRON) ----
Thermo switch model (manufac-
turer)5EB (NIPPON THERMOSTAT) ----
Fuses (amperage ´ quantity)
Main fuse 30 A ´ 1 ----
Headlight fuse 20 A ´ 1 ----
Signaling system fuse 20 A ´ 1 ----
EFI fuse 20 A ´ 1 ----
ECU fuse 7.5 A ´ 1 ----
Radiator fan fuse 7.5 A ´ 1 ----
Backup fuse (odometer) 7.5 A ´ 1 ---- Item Standard Limit

2 - 17
SPEC
EB202001
TIGHTENING TORQUES
GENERAL TIGHTENING TORQUES
This chart specifies tightening torques for
standard fasteners with a standard ISO
thread pitch. Tightening torque specifica-
tions for special components or assemblies
are provided for each chapter of this man-
ual. To avoid warpage, tighten multi-fas-
tener assemblies in a crisscross pattern and
progressive stages until the specified tight-
ening torque is reached. Unless otherwise
specified, tightening torque specifications
require clean, dry threads. Components
should be at room temperature.
A: Width across flats
B: Thread diameter
A
(nut)B
(bolt)General tightening
torques
Nm m•kg ft•lb
10 mm 6 mm 6 0.6 4.3
12 mm 8 mm 15 1.5 11
14 mm 10 mm 30 3.0 22
17 mm 12 mm 55 5.5 40
19 mm 14 mm 85 8.5 61
22 mm 16 mm 130 13.0 94
TIGHTENING TORQUES

2 - 18
SPEC
ENGINE TIGHTENING TORQUES
Item Fastener Thread size Q’tyTightening torque
Remarks
Nm m·kgf ft·lb
Spark plugs – M10 4 13 1.3 9.4
Cylinder head Nut M10 8 50 5.0 36
E
Cylinder head Cap nut M10 2 50 5.0 36E
Cylinder head Bolt M6 2 12 1.2 8.7
Camshaft caps Bolt M6 28 10 1.0 7.2
E
Cylinder head cover Bolt M6 6 12 1.2 8.7
Oil passage check bolt Bolt M8 1 20 2.0 14
Cap bolt (timing chain tensioner) Bolt M6 1 10 1.0 7.2
Camshaft sprocket Bolt M7 4 24 2.4 17
Generator rotor Bolt M10 1 65 6.5 47
E
Pickup coil rotor Bolt M10 1 45 4.5 32E
Water pump inlet pipe Bolt M6 1 10 1.0 7.2LT
Water pump outlet pipe Bolt M6 1 10 1.0 7.2LT
Oil/water pump assembly
driven sprocketBolt M6 1 15 1.5 11LT
Oil pump Bolt M6 1 12 1.2 8.7
Oil cooler Bolt M20 1 63 6.3 45
E
Engine oil drain bolt – M14 1 43 4.3 31
Oil strainer housing Bolt M6 2 10 1.0 7.2
LT
Oil/water pump assembly
driven sprocket coverBolt M6 1 12 1.2 8.7LT
Oil delivery pipe Bolt M6 1 10 1.0 7.2LT
Oil filter bolt Bolt M20 1 70 7.0 50
Oil filter cartridge – M20 1 17 1.7 12
E
Exhaust pipe joints Bolt M8 8 20 2.0 14
Exhaust pipe Bolt M8 1 20 2.0 14
Exhaust pipe bracket Bolt M8 1 24 2.4 17
Exhaust pipe emission check
boltsBolt M6 4 10 1.0 7.2
Muffler clamp Bolt M8 1 20 2.0 14
Muffler Bolt M10 1 38 3.8 27
Muffler bracket Bolt M8 2 28 2.8 20
Crankcase (cylinder head) Stud bolt M10 10 10 1.0 7.2
E
Crankcase Bolt M9 10 32 3.2 23E
Crankcase Bolt M6 2 14 1.4 10E
Crankcase Bolt M6 14 12 1.2 8.7E
Crankcase Bolt M8 2 24 2.4 17E
Generator rotor cover Bolt M6 9 12 1.2 8.7
Clutch cover Bolt M6 9 12 1.2 8.7
Pickup coil rotor cover Bolt M6 7 12 1.2 8.7
TIGHTENING TORQUES