1999 YAMAHA YZF-R7 width

GENERAL SPECIFICATIONS
SPEC

2 - 1
SPECIFICATIONS
GENERAL SPECIFICATIONS
Item Standard Limit
Dimensions
Overall length 2,060 mm (81.1 in) ----
Overall width 720 mm (28.3 in) ----
Overall height 1,125 mm (44.3 in) ----
Seat height 840 mm (33.1 in) ----
Wheelbase 1,400 mm (55.1 in) ----
Minimum ground clearance 120 mm (4.72 in) ----
Minimum turning radius 3,800 mm (150 in) ----
Weight
Wet (with oil and a full fuel tank) 207 kg (456 lb) ----
Dry (without oil and fuel) 176 kg (388 lb) ----
Maximum load (total of rider and
accessories) 317 kg (699 lb) ----
2

ENGINE SPECIFICATIONS
SPEC

2 - 3
Oil filter
Oil filter type Cartridge (paper) ----
Bypass valve opening pressure 180 ~ 220 kPa
(1.8 ~ 2.2 kgf/cm
2

, 25.6 ~ 31.3 psi)----
Oil pump

Oil pump type Trochoidal ----
Inner rotor-to-outer rotor tip clear-
ance0.09 ~ 0.15 mm (0.004 ~ 0.006 in) ----
Outer rotor-to-oil pump housing
clearance0.03 ~ 0.08 mm (0.001 ~ 0.003 in) ----
Cooling system
Radiator capacity 2.75 L (2.42 Imp qt, 2.91 US qt)
Radiator cap opening pressure 95 ~ 125 kPa
(0.95 ~ 1.25 kgf/cm
2

, 13.1 ~ 17.8 psi)----
Upper radiator core
Width 414 mm (16.3 in) ----
Height 248 mm (9.76 in) ----
Depth 24 mm (0.94 in) ----
Lower radiator core
Width 211 mm (8.31 in) ----
Height 158 mm (6.22 in) ----
Depth 24 mm (0.94 in) ----
Coolant reservoir
Capacity 0.6 L (0.53 Imp qt, 0.63 US qt) ----
Water pump
Water pump type Single-suction centrifugal pump ----
Reduction ratio 88/47
´
28/25 (2.097) ----
Maximum impeller shaft tilt ---- 0.15 mm
(0.006 in)
Starting system type
Electric starter
Spark plugs
Model (manufacturer)
´
quantity R0256R-10 (NGK)
´
4 ----
Spark plug gap 0.7 ~ 0.8 mm (0.028 ~ 0.031 in) ----
Cylinder head
Maximum warpage ---- 0.06 mm
(0.0024 in) Item Standard Limit

ENGINE SPECIFICATIONS
SPEC

2 - 5
Timing chain
Model/number of links DID219FTH3/100 ----
Tensioning system Automatic ----
Valves, valve seats, valve guides
Valve clearance (cold)
Intake 0.20 ~ 0.25 mm (0.0079 ~ 0.0098 in) ----
Exhaust 0.25 ~ 0.30 mm (0.0098 ~ 0.0118 in) ----
Valve dimensions
Valve head diameter A
Intake 22.1 ~ 22.3 mm (0.8701 ~ 0.8780 in) ----
Exhaust 23.4 ~ 23.6 mm (0.9213 ~ 0.9291 in) ----
Valve face width B
Intake 0.54 ~ 1.57 mm (0.0213 ~ 0.0618 in) ----
Exhaust 0.88 ~ 1.87 mm (0.0346 ~ 0.0736 in) ----
Valve seat width C
Intake 0.7 ~ 0.9 mm (0.028 ~ 0.035 in) ----
Exhaust 0.7 ~ 0.9 mm (0.028 ~ 0.035 in) ----
Valve margin thickness D
Intake 0.9 ~ 1.2 mm (0.028 ~ 0.047 in) ----
Exhaust 1.0 ~ 1.3 mm (0.039 ~ 0.051 in) ----
Valve stem diameter
Intake 3.983 ~ 3.995 mm (0.1568 ~ 0.1573 in) 3.953 mm
(0.1556 in)
Exhaust 3.978 ~ 3.990 mm (0.1566 ~ 0.1571 in) 3.948 mm
(0.1544 in)
Valve guide inside diameter
Intake 4.000 ~ 4.012 mm (0.1575 ~ 0.1580 in) 4.05 mm
(0.1594 in)
Exhaust 4.000 ~ 4.012 mm (0.1575 ~ 0.1580 in) 4.05 mm
(0.1594 in)
Valve stem-to-valve guide clear-
ance
Intake 0.005 ~ 0.029 mm (0.0002 ~ 0.0011 in) 0.06 mm
(0.0024 in)
Exhaust 0.010 ~ 0.034 mm (0.0004 ~ 0.0013 in) 0.07 mm
(0.0028 in) Item Standard Limit
Head Diameter
B
Face WidthC
Seat Width
D
Margin ThicknessA

ENGINE SPECIFICATIONS
SPEC

2 - 6
Valve stem runout ---- 0.01 mm
(0.0004 in)
Valve seat width
Intake 0.9 ~ 1.1 mm (0.035 ~ 0.043 in) 1.6 mm
(0.06 in)
Exhaust 0.9 ~ 1.1 mm (0.035 ~ 0.043 in) 1.6 mm
(0.06 in)
Valve springs
Inner spring
Free length
Intake 32.35 mm (1.27 in) 30.73 mm
(1.21 in)
Exhaust 28.82 mm (1.13 in) 27.37 mm
(1.08 in)
Installed length (valve closed)
Intake 27.96 mm (1.10 in) ----
Exhaust 24.6 mm (0.97 in) ----
Compressed spring force
(installed)
Intake 101 ~ 117 N
(10.30 ~ 11.93 kgf, 22.7 ~ 26.3 lb)----
Exhaust 106 ~ 122 N
(10.81 ~ 12.44 kgf, 23.8 ~ 27.4 lb)----
Spring tilt
Intake ----2.5˚ /1.4 mm
(2.5˚/0.055 in)
Exhaust ----2.5˚ /1.3 mm
(2.5˚/0.051 in)
Winding direction (top view)
Intake Counter clockwise ----
Exhaust Counter clockwise ----Item Standard Limit

ENGINE SPECIFICATIONS
SPEC

2 - 9
Oil ring
Dimensions (B

´

T) 1.5
´
2.5 mm (0.059
´
0.098 in) ----
End gap (installed) 0.1 ~ 0.3 mm (0.004 ~ 0.012 in) ----
Connecting rods
Crankshaft pin-to-big end bearing
clearance0.058 ~ 0.078 mm (0.0023 ~ 0.0031 in) ----
Bearing color code 2 = Blue, 3·4 = Black, 5·6 = Brown,
7·8 = Green, 9 = Yellow----
Crankshaft
Width A 54.4 ~ 56.0 mm (2.142 ~ 2.205 in) ----
Width B 292.8 ~ 294.0 mm (11.53 ~ 11.57 in) ----
Maximum runout C 0.035 mm
(0.0014 in)
Big end side clearance D 0.16 ~ 0.26 mm (0.006 ~ 0.010 in) ----
Crankshaft journal-to-crankshaft
journal bearing clearance0.036 ~ 0.056 mm (0.0014 ~ 0.0022 in) ----
Bearing color code1·2 = Blue, 3·4 = Black, 5·6 = Brown, 7·8 =
Green, 9·10 = Yellow, 11 = Violet----
Clutch
Clutch type Wet, multiple disc ----
Clutch release method Hydraulic inner push ----
Operation Left-hand operation ----
Recommended fluid Brake fluid DOT4 ----
Friction plates #1
Thickness 2.9 ~ 3.1 mm (0.114 ~ 0.122 in) 2.8 mm
(0.110 in)
Plate quantity 8 ----
Friction plate #2
Thickness 3.7 ~ 3.9 mm (0.146 ~ 0.154 in) 3.6 mm
(0.142 in)
Plate quantity 1 ----Item Standard Limit
B
T
D
FCCC
A
B
E

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

4 - 13
ENGCAMSHAFTS
t t t t t t t t t t t t t t t t t t t t t t t t t t t
a. Install the camshaft into the cylinder
head (without the dowel pins and
camshaft caps).
b. Position a strip of Plastigauge
® 1
onto the camshaft journal as shown.
c. Install the dowel pins and camshaft
caps.
NOTE:
• Tighten the camshaft cap bolts in
stages and in a crisscross pattern,
working from the inner caps out.
• Do not turn the camshaft when mea-
suring the camshaft journal-to-cam-
shaft cap clearance with the
Plastigauge®.
d. Remove the camshaft caps and then
measure the width of the Plasti-
gauge
® 1.
s s s s s s s s s s s s s s s s s s s s s s s s s s s
T R..
Camshaft cap bolt
10 Nm (1.0 m • kg, 7.2 ft • lb)
5. Measure:
• camshaft journal diameter a
Out of specification ® Replace the
camshaft.
Within specification ® Replace the cylin-
der head and the camshaft caps as a set.
Camshaft journal diameter
24.452 ~ 24.465 mm
(0.9627 ~ 0.9632 in)
EB401421
CHECKING THE TIMING CHAIN,
CAMSHAFT SPROCKETS, AND TIMING
CHAIN GUIDES
The following procedure applies to all of
the camshaft sprockets and timing chain
guides.
1. Check:
• timing chain
Damage/stiffness ® Replace the tim-
ing chain and camshaft sprockets as a
set.

4 - 23
ENGVALVES AND VALVE SPRINGS
EB403100
REMOVING THE VALVES
The following procedure applies to all of
the valves and related components.
NOTE:
Before removing the internal parts of the
cylinder head (e.g., valves, valve
springs, valve seats), make sure that the
valves properly seal.
1. Remove:
• valve lifter 1
• valve pad 2
NOTE:
Make a note of the position of each
valve lifter and valve pad so that they
can be reinstalled in their original place.
2. Check:
• valve
(for leakage)
Leakage at the valve seat ® Check the
valve face, valve seat, and valve seat
width.
Refer to “CHECKING THE VALVE
SEATS”.
t t t t t t t t t t t t t t t t t t t t t t t t t t t
a. Pour a clean solvent a into the intake
and exhaust ports.
b. Check that the valves properly seal.
NOTE:
There should be no leakage at the valve
seat 1.
s s s s s s s s s s s s s s s s s s s s s s s s s s s