Yamaha FZS6W 07 User Manual

FEATURES
1-2
EAS20170
FEATURES
EAS4S81003
OUTLINE OF FI SYSTEM
The main function of a fuel supply system is to provide fuel to the combustion chamber at the opti-
mum air-fuel ratio in accordance with the engine  operating conditions and the atmospheric tempera-
ture.
In the conventional carburetor system, the air-fuel ratio of the mixture that is supplied to the combus-
tion chamber is created by the volume of the intake air and the fuel that is metered by the jet used in 
the respective carburetor....

FEATURES
1-3
EAS4S81004
FI SYSTEM
The fuel pump delivers fuel to the injector via the fuel filter. The pressure regulator maintains the fuel 
pressure that is applied to the injector at only 250 kPa (2.5 kg/cm
2). Accordingly, when the energiz-
ing signal from the ECU energizes the injector, th e fuel passage opens, causing the fuel to be 
injected into the intake manifold only during the time the passage remains open. Therefore, the 
longer the length of time the injector is energized (injection...

FEATURES
1-4
EAS4S81005
INSTRUMENT FUNCTIONS
WARNING
EWA4S81002
Be sure to stop the vehicle before making 
any setting changes to the multi-function 
meter unit.
The multi-function meter unit is equipped with 
the following:
 a speedometer (which shows the riding speed)
 a tachometer (which shows engine speed)
 an odometer (which shows the total distance  traveled)
 two tripmeters (which show the distance trav- eled since they were last set to zero)
 a fuel reserve tripmeter (which shows the...

FEATURES
1-5
Odometer and tripmeter modes
Push the “SELECT” button to switch the dis-
play between the odometer mode “ODO” and 
the tripmeter modes “TRIP A” and “TRIP B” in 
the following order:
“TRIP A” → “TRIP B”  → “ODO”  → “TRIP A”
When the fuel amount in the fuel tank 
decreases to 3.4 L (0.90 US gal) (0.75 
Imp.gal), the left segment of the fuel meter will 
start flashing, and the odometer display will 
automatically change to the fuel reserve trip-
meter mode “F TRIP” and start counting the...

FEATURES
1-6
NOTE:
 Even if the air intake temperature is set to be displayed, the coolant temperature warning 
light comes on when the engine overheats.
 When the key is turned to “ON”, the coolant 
temperature is automatically displayed, even 
if the air intake temperature was displayed 
prior to turning the key to “OFF”.
 When the air intake temperature display is  selected, “A” is displayed for one second, 
and then the air intake temperature is dis-
played.
Self-diagnosis device
This model is...

IMPORTANT INFORMATION
1-7
EAS20180
IMPORTANT INFORMATION
EAS20190
PREPARATION FOR REMOVAL AND DISAS-
SEMBLY
1. Before removal and disassembly, remove all dirt, mud, dust and foreign material.
2. Use only the proper tools and cleaning  equipment.
Refer to SPECIAL TOOLS on page 1-10.
3. When disassembling, always keep mated 
parts together. This includes gears, cylin-
ders, pistons and other parts that have 
been “mated” through normal wear. Mated 
parts must always be reused or replaced 
as an assembly....

IMPORTANT INFORMATION
1-8
EAS20230
BEARINGS AND OIL SEALS
Install bearings and oil seals so that the manu-
facturer’s marks or numbers are visible. When 
installing oil seals “1”, lubricate the oil seal lips 
with a light coat of lithium-soap-based grease. 
Oil bearings liberally when installing, if appro-
priate.
CAUTION:
ECA13300
Do not spin the bearing with compressed 
air because this will damage the bearing 
surfaces.
EAS20240
CIRCLIPS
Before reassembly, check all circlips carefully 
and replace...

CHECKING THE CONNECTIONS
1-9
EAS20250
CHECKING THE CONNECTIONS
Check the leads, couplers, and connectors for 
stains, rust, moisture, etc.
1. Disconnect: Lead
 Coupler
 Connector
2. Check:  Lead
 Coupler
 ConnectorMoisture  → Dry with an air blower.
Rust/stains  → Connect and disconnect 
several times.
3. Check:  All connectionsLoose connection  → Connect properly.
NOTE:
If the pin “1” on the terminal is flattened, bend 
it up.
4. Connect:
 Lead
 Coupler
 Connector
NOTE:
Make sure all...

SPECIAL TOOLS
1-10
EAS20260
SPECIAL TOOLS
The following special tools are necessary for complete and accurate tune-up and assembly. Use 
only the appropriate special tools as this will help prevent damage caused by the use of inappropri-
ate tools or improvised techniques. Special tools, part numbers or both may differ depending on the 
country.
When placing an order, refer to the list provided below to avoid any mistakes.
NOTE:
 For U.S.A. and Canada, use part number starting with “YM-”, “YU-”, or...

SPECIAL TOOLS
1-11
Steering nut wrench
90890-01403
Spanner wrench
YU-339753-26, 4-53
Damper rod holder
90890-01294
Damping rod holder set
YM-01300 4-45, 4-47
T-handle
90890-01326
YM-01326 4-45, 4-47
Oil filter wrench
90890-01426
YU-38411 3-13
Fork seal driver weight
90890-01367
Replacement hammer
YM-A9409-7 4-47, 4-48
Fork seal driver attachment (ø43)
90890-01374
Replacement 43 mm
YM-A5142-3 4-47
Vacuum gauge
90890-03094
Carburetor synchronizer
YU-44456 3-7
Compression gauge
90890-03081
Engine...