Yamaha R1 2004 ServiceManual

2-13
CHASSIS SPECIFICATIONSSPEC
ItemStandardLimit
Front suspension
Suspension type
Front fork type
Front fork travel
Spring
Free length
Spacer length
Installed length
Spring rate (K1)
Spring stroke (K1)
Inner tube outer diameter
Inner tube bending limit
Optional spring available
Fork oil
Recommended oil
Quantity (each front fork leg)
Level (from the top of the outer
tube, with the outer tube fully
compressed, and without the
fork spring)
Spring preload adjusting positions
Minimum
Standard
Maximum
Rebound...

2-14
CHASSIS SPECIFICATIONSSPEC
ItemStandardLimit
Steering
Steering bearing type
Angular bearing



Lock to lock angle (left)
Lock to lock angle (right)27
27







Rear suspension
Suspension type
Rear shock absorber assembly
type
Rear shock absorber assembly
travel
Spring
Free length
Installed length
Spring rate (K1)
Spring stroke (K1)
Optional spring available
Standard spring preload gas / air
pressure
Spring preload adjusting positions
Minimum
Standard
Maximum
Rebound damping adjusting
positions...

2-15
ELECTRICAL SPECIFICATIONSSPEC
ELECTRICAL SPECIFICATIONS
ItemStandardLimit
System voltage12 V



Ignition system
Ignition system type
Ignition timing
Crankshaft position sensor
resistance / color
T.C.I. unit model (manufacturer)
DC. T.C.I.
5 BTDC at 1,050 r / min
336  504 Ω at 20C (68F) / Gy-B
F8T822 (MITSUBISHI) (USA)
F8T823 (MITSUBISHI) (CAL)



















Ignition coils
Model (manufacturer)
Minimum ignition spark gap
Primary coil resistance
Secondary coil resistance
F6T558 (MITSUBISHI)
6...

2-16
ELECTRICAL SPECIFICATIONSSPEC
ItemStandardLimit
Indicator light
(voltage / wattage 
 quantity)
Neutral indicator light
High beam indicator light
Oil level warning light
Turn signal indicator light
Fuel level warning light
Coolant temparture indicator light
Engine trouble warning light
Shift timing indicator light
LED 
 1
LED 
 1
LED 
 1
LED 
 2
LED 
 1
LED 
 1
LED 
 1
LED 
 1































Electric starting system
System type
Starter motor
Model (manufacturer)
Power output
Brushes...

2-17
ELECTRICAL SPECIFICATIONSSPEC
ItemStandardLimit
Fuses (amperage 
 quantity)
Main fuse
Fuel injection system fuse
Headlight fuse
Signaling system fuse
Ignition fuse
Radiator fan motor fuse
Backup fuse (odometer and clock)
Reserve fuse
50 A 
 1
15 A 
 1
25 A 
 1
10 A 
 1
15 A 
 1
15 A 
 2
10 A 
 1
25 A, 15 A, 10 A 
 1






























 

2-18
EAS00030
GENERAL TIGHTENING TORQUE
SPECIFICATIONS
This chart specifies tightening torques for stan-
dard fasteners with a standard ISO thread
pitch. Tightening torque specifications for spe-
cial components or assemblies are provided
for each chapter of this manual. To avoid war-
page, tighten multi-fastener assemblies in a
crisscross pattern and progressive stages until
the specified tightening torque is reached. Un-
less otherwise specified, tightening torque
specifications require clean, dry...

2-19
TIGHTENING TORQUESSPEC
Use a lock 
washer
TIGHTENING TORQUES
ENGINE TIGHTENING TORQUES
ItemFastenerThreadQ’tyTightening torqueRemarksItemFastenersizeQtyNmm
kgft
lbRemarks
Spark plugs—M104131.39.4
Cylinder headNutM1010See NOTE 1
BoltM62121.28.7
Camshaft capsBoltM628101.07.2
Cylinder head coverBoltM66121.28.7
Cylinder head (exhaust pipe)Stud boltM88151.511
Air indication system capBoltM64101.07.2
Camshaft sprocketsBoltM74242.417
Cylinder head and throttle bodyClampM5430.32.2
Connecting rod...

2-20
TIGHTENING TORQUESSPEC
ItemFastenerThreadQ’tyTightening torqueRemarksItemFastenersizeQtyNmm
kgft
lbRemarks
Exhaust pipe and cylinder headNutM88202.014
Catalyst pipe assembly and
mufflerBoltM82202.014
Exhaust pipe and exhaust valveBoltM65101.07.2
pipe assembly
Exhaust valve pipe and housingBoltM61101.07.2
Pulley and shaft armNutM6170.75.0
EXUP pulley bracketBoltM61101.07.2
EXUP pulley coverBoltM62101.07.2
Exhaust valve pipe and bracketBoltM81202.014
EXUP cable nutNutM6270.75.0
Catalyst pipe bracket...

2-21
TIGHTENING TORQUESSPEC
NOTE 1:
NOTE 2:
ItemFastenerThreadQ’tyTightening torqueRemarksItemFastenersizeQtyNmm
kgft
lbRemarks
Main axle bearing housingBoltM63121.28.7
Shift fork shaft stopperBoltM62101.07.2
Stopper screwScrewM81222.216
Shift rod lock nut (rear)NutM6170.75.0Left thread
Shift rod lock nut (front)NutM6170.75.0
Shift rod jointBoltM61101.07.2
Shift armBoltM61101.07.2
E.C.U.ScrewM6270.75.0
Neutral switch—M101202.015
EXUP servo motor coverScrewM5220.21.5
Coolant temperature...

2-22
TIGHTENING TORQUESSPEC
Cylinder head tightening sequence:
Crankcase tightening sequence.