Yamaha Fz6 N Service Manual

ENGINE
3-18
Refer to GENERAL CHASSIS on page 4-
1.
EAS21010
CHECKING THE THROTTLE BODY JOINTS
The following procedure applies to all of the 
throttle body joints and intake manifolds.
1. Remove: Throttle bodies Refer to THROTTLE BODIES on page 7-
4.
2. Check:  Throttle body joints “1”
Cracks/damage  → Replace.
3. Install:  Throttle bodies Refer to THROTTLE BODIES on page 7-
4.
EAS21030
CHECKING THE FUEL LINE
The following procedure applies to all of the 
fuel, vacuum and breather hoses.
1....

ENGINE
3-19
SeatRefer to GENERAL CHASSIS on page 4-
1.
EAS21080
CHECKING THE EXHAUST SYSTEM
The following procedure applies to all of the 
exhaust pipes and gaskets.
1. Remove:Radiator
Refer to RADIATOR on page 6-1.
2. Check:  Exhaust pipe “1”
 Catalytic converter pipe “2”
 Muffler “3” Cracks/damage  → Replace.
Gasket “4” Exhaust gas leaks  → Replace.
3. Check:
 Tightening torque
 Exhaust pipe nut “5”
 Catalytic converter joint bolt “6”
 Muffler joint bolt “7”
 Muffler stay bolt “8”
 Exhaust...

ENGINE
3-20
3. Start the engine, warm it up for several minutes, and then turn it off.
4. Check:  Coolant level
NOTE:
Before checking the coolant level, wait a few 
minutes until it settles.
EAS21120
CHECKING THE COOLING SYSTEM
1. Check:
 Radiator “1”
 Radiator inlet hose “2”
 Radiator outlet hose “3”
Oil cooler “4”
 Oil cooler inlet hose “5”
 Oil cooler outlet hose “6”
 Water jacket joint “7”
 Water jacket joint hose “8”
 Oil cooler inlet pipe “9”
 Water pump outlet hose “10” Cracks/damage...

ENGINE
3-21
WARNING
EWA13030
A hot radiator is under pressure. Therefore, 
do not remove the radiator cap when the 
engine is hot. Scalding hot fluid and steam 
may be blown out, which could cause seri-
ous injury. When the engine has cooled, 
open the radiator cap as follows:
Place a thick rag or a towel over the radia-
tor cap and slowly turn the radiator cap 
counterclockwise toward the detent to 
allow any residual pressure to escape. 
When the hissing sound has stopped, 
press down on the radiator...

ENGINE
3-22
12. Install: Coolant reservoir cap
13. Start the engine, warm it up for several  minutes, and then stop it.
14. Check:  Coolant level Refer to CHECKING THE COOLANT 
LEVEL on page 3-19.
NOTE:
Before checking the coolant level, wait a few 
minutes until the coolant has settled. 

CHASSIS
3-23
EAS21140
CHASSIS
EAS21160
ADJUSTING THE FRONT DISC BRAKE
1. Adjust: Brake lever position (distance “a” from the throttle grip to the 
brake lever)
NOTE:
 While pushing the brake lever forward, turn 
the adjusting dial “1” until the brake lever is in 
the desired position.
 Be sure to align the setting on the adjusting  dial with the arrow mark “2” on the brake 
lever holder.
WARNING
EWA13060
 After adjusting the brake lever position, make sure the pin on the brake lever 
holder is...

CHASSIS
3-24
WARNING
EWA4S81005
A soft or spongy feeling in the brake pedal 
can indicate the presence of air in the brake 
system. Before the vehicle is operated, the 
air must be removed by bleeding the brake 
system. Air in the brake system will consid-
erably reduce braking performance.
CAUTION:
ECA13510
After adjusting the brake pedal position, 
make sure there is no brake drag.
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3. Adjust: Rear brake light switch Refer to ADJUSTING THE REAR BRAKE 
LIGHT SWITCH on...

CHASSIS
3-25
EAS21260
CHECKING THE REAR BRAKE PADS
The following procedure applies to all of the 
brake pads.
1. Operate the brake.
2. Check: Rear brake pad
Wear indicators “b” almost touch the brake 
disc  → Replace the brake pads as a set.
Refer to REAR BRAKE on page 4-41.
EAS21280
CHECKING THE FRONT BRAKE HOSES
The following procedure applies to all of the 
brake hoses and brake hose clamps.
1. Check:  Brake hose
Cracks/damage/wear  → Replace.
2. Check:  Brake hose clamp Loose  → Tighten the clamp...

CHASSIS
3-26
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EAS21340
BLEEDING THE HYDRAULIC BRAKE SYS-
TEM
WARNING
EWA13100
Bleed the hydraulic brake system when-
ever:
 the system is disassembled.
 a brake hose is loosened, disconnected or replaced.
 the brake fluid level is very low.
 brake operation is faulty.
NOTE:
 Be careful not to spill any brake fluid or allow  the brake master cylinder reservoir or brake 
fluid reservoir to overflow.
 When bleeding the hydraulic brake system,  make sure there is always...

CHASSIS
3-27
WARNING
EWA13110
After bleeding the hydraulic brake system, 
check the brake operation.
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Bleeding the ABS brake
WARNING
EWA14010
Bleed the ABS whenever:
 the system is disassembled.
 a brake hose is loosened, disconnected or replaced.
 the brake fluid lever is very low.
 brake operation is faulty.
NOTE:
 Be careful not to spill any brake fluid or allow  the brake master cylinder reservoir or brake 
fluid reservoir to overflow.
 When bleeding the ABS, make...