Yamaha FZS6W 07 User Manual

ENGINE
3-6
 Since valve pads of various sizes are origi-nally installed, the valve pad number must be 
rounded in order to reach the closest equiva-
lent to the original.
c. Round off the original valve pad number  according to the following table.
EXAMPLE:
Original valve pad number = 148 (thickness 
= 1.48 mm (0.058 in))
Rounded value = 150
d. Locate the rounded number of the original 
valve pad and the measured valve clear-
ance in the valve pad selection table. The 
point where the column and row...

ENGINE
3-7
 Air filter caseRefer to GENERAL CHASSIS on page 4-
1.
3. Install:  Vacuum gauge “1”(onto the synchronizing hose “2”)
4. Install:  Air filter caseRefer to GENERAL CHASSIS on page 4-
1.
 Fuel tank Refer to FUEL TANK on page 7-1.
5. Start the engine and let it warm up for sev-
eral minutes.
6. Check:  Engine idling speed
Out of specification  → Adjust.
Refer to ADJUSTING THE ENGINE 
IDLING SPEED on page 3-8.
7. Adjust:  Throttle body synchronization
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a. With...

ENGINE
3-8
11. Install: Fuel tank
Refer to FUEL TANK on page 7-1.
Seat Refer to GENERAL CHASSIS on page 4-
1.
EAS20610
ADJUSTING THE ENGINE IDLING SPEED
NOTE:
Prior to adjusting the engine idling speed, the 
throttle bodies synchronization should be 
adjusted properly, the air filter element should 
be clean, and the engine should have ade-
quate compression.
1. Start the engine and let it warm up for sev-
eral minutes.
2. Check:  Engine idling speed
Out of specification  → Adjust.
3. Adjust: ...

ENGINE
3-9
b. Turn the adjusting nut “3” in direction “a” or 
“b” to take up any slack on the decelerator 
cable.
c. Tighten the locknuts
NOTE:
If the specified throttle cable free play cannot 
be obtained on the throttle body side of the 
cable, use the adjusting nut on the handlebar 
side.
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Handlebar side
a. Loosen the locknut “1”.
b. Turn the adjusting nut  “2” in direction “a” or 
“b” until the specified throttle cable free 
play is...

ENGINE
3-10
CAUTION:
ECA13320
Before removing the spark plugs, blow 
away any dirt accumulated in the spark 
plug wells with compressed air to prevent it 
from falling into the cylinders.
4. Check: Spark plug type
Incorrect  → Change.
5. Check:  Electrode “1”Damage/wear  → Replace the spark plug.
 Insulator “2”
Abnormal color  → Replace the spark plug.
Normal color is medium-to-light tan.
6. Clean:
 Spark plug(with a spark plug cleaner or wire brush)
7. Measure:
 Spark plug gap “a”(with a wire...

ENGINE
3-11
 BatteryRefer to GENERAL CHASSIS on page 4-
1 and CHECKING AND CHARGING THE 
BATTERY on page 8-68.
 Battery box
 Battery box bracket Refer to GENERAL CHASSIS on page 4-
1.
 Heat protector plate
Cover
 Ignition coils
4. Disconnect:  Spark plug caps
5. Remove:  Spark plugs
CAUTION:
ECA13340
Before removing the spark plugs, use com-
pressed air to blow away any dirt accumu-
lated in the spark plug wells to prevent it 
from falling into the cylinders.
6. Install: Compression gauge “1”...

ENGINE
3-12
 Heat protector plate
 Battery box bracket
 Battery boxRefer to GENERAL CHASSIS on page 4-
1.
 Battery
Refer to GENERAL CHASSIS on page 4-
1 and CHECKING AND CHARGING THE 
BATTERY on page 8-68.
 Air filter case
Refer to GENERAL CHASSIS on page 4-
1.
 Fuel tank
Refer to FUEL TANK on page 7-1.
Seat Refer to GENERAL CHASSIS on page 4-
1.
EAS20730
CHECKING THE ENGINE OIL LEVEL
1. Stand the vehicle on a level surface.
NOTE:
 Place the vehicle on a suitable stand.
 Make sure the vehicle...

ENGINE
3-13
4. Drain: Engine oil(completely from the crankcase)
5. If the oil filter cartridge is also to be  replaced, perform the following procedure.
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a. Remove the oil filter cartridge “1” with an oil filter wrench “2”.
b. Lubricate the O-ring “3” of the new oil filter  cartridge with a thin coat of engine oil.
CAUTION:
ECA13390
Make sure the O-ring “3” is positioned cor-
rectly in the groove of the oil filter car-
tridge.
c. Tighten the new oil filter cartridge to...

ENGINE
3-14
CAUTION:
ECA13410
When the engine is cold, the engine oil will 
have a higher viscosity, causing the engine 
oil pressure to increase. Therefore, be sure 
to measure the engine oil pressure after 
warming up the engine.
3. Remove: Oil gallery bolt “1”
WARNING
EWA12980
The engine, muffler and engine oil are 
extremely hot.
4. Install: Oil pressure gauge “1”
 Adapter “2”
5. Measure:  Engine oil pressure(at the following conditions) Out of specification 
→ Adjust.
6. Install:  Main gallery...

ENGINE
3-15
2. Adjust: Clutch cable free play
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Handlebar side
a. Turn the adjusting bolt “1” in direction “a” or  “b” until the specified clutch cable free play 
is obtained.
NOTE:
If the specified clutch cable free play cannot be 
obtained on the handlebar side of the cable, 
use the adjusting nut on the engine side.
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Engine side
a. Loosen the locknuts “1”.
b. Turn the adjusting nut  “2” in direction “a” or 
“b”...