Yamaha Fz1n Service Manual

CHASSIS
3-26
WARNING
EWA13110
After bleeding the hydraulic brake system, 
check the brake operation.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
ET2D1006
ADJUSTING THE SHIFT PEDAL
1. Adjust: Shift pedal position
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Loosen both locknuts “1”.
b. Turn the shift rod “2” in direction “a” or “b” to  obtain the correct shift pedal position.
c. Tighten both locknuts.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
ET2D1007
ADJUSTING THE DRIVE CHAIN SLACK
NOTE:
The drive chain slack must be checked at the...

CHASSIS
3-27
d. Tighten both locknuts to specification.
e. Tighten the wheel axle nut to specification.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
ET2D1008
LUBRICATING THE DRIVE CHAIN
The drive chain consists of many interacting 
parts. If the drive chain is not maintained prop-
erly, it will wear out quickly. Therefore, the drive 
chain should be serviced, especially when the 
vehicle is used in dusty areas.
This vehicle has a drive chain with small rub-
ber O-rings between each side plate. Steam 
cleaning,...

CHASSIS
3-28
d. Check the steering head for looseness or binding by turning the front fork all the way 
in both directions. If any binding is felt, 
remove the lower bracket and check the 
upper and lower bearings.
Refer to STEERING HEAD on page 4-57.
e. Install the rubber washer “3”.
f. Install the upper ring nut “2”.
g. Finger tighten the upper ring nut “2”, then  align the slots of both ring nuts. If neces-
sary, hold the lower ring nut and tighten the 
upper ring nut until their slots are aligned....

CHASSIS
3-29
WARNING
EWA13120
Securely support the vehicle so that there 
is no danger of it falling over.
2. Check: Inner tube “1”Damage/scratches  → Replace.
 Oil seal “2”
Oil leakage  → Replace.
3. Hold the vehicle upright and apply the front  brake.
4. Check:  Front fork operation
Push down hard on the handlebar several 
times and check if the front fork rebounds 
smoothly.
Rough movement  → Repair.
Refer to FRONT FORK on page 4-48.
EAS21580
ADJUSTING THE FRONT FORK LEGS
The following procedure...

CHASSIS
3-30
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
Rebound damping (Right side front fork)
CAUTION:
EC2D1006
 Never go beyond the maximum or mini-mum adjustment positions.
 When assembling the front forks, be care-
ful not to assemble them to the opposite 
position because there are two kinds of 
forks (for the rebound side and for the 
compression side).
1. Adjust:  Rebound damping
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Turn the adjusting screw “1” in direction “a”  or “b”.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲...

CHASSIS
3-31
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS21620
ADJUSTING THE REAR SHOCK 
ABSORBER ASSEMBLY
WARNING
EWA13120
Securely support the vehicle so that there 
is no danger of it falling over.
Spring preload
CAUTION:
ECA13590
Never go beyond the maximum or minimum 
adjustment positions.
1. Adjust: Spring preload
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Adjust the spring preload with the special  wrench and extension bar included in the 
owner’s tool kit.
b. Turn the adjusting ring “1” in direction “a” or  “b”....

CHASSIS
3-32
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS21650
CHECKING THE TIRES
The following procedure applies to both of the 
tires.
1. Check: Tire pressureOut of specification  → Regulate.
WARNING
EWA13180
 The tire pressure should only be checked 
and regulated when the tire temperature 
equals the ambient air temperature.
 The tire pressure and the suspension  must be adjusted according to the total 
weight (including cargo, rider, passenger 
and accessories) and the anticipated 
riding speed.
...

CHASSIS
3-33
WARNING
EWA14080
 Do not use a tubeless tire on a wheel designed only for tube tires to avoid tire 
failure and personal injury from sudden 
deflation.
 When using a tube tire, be sure to install  the correct tube.
 Always replace a new tube tire and a new  tube as a set.
 To avoid pinching the tube, make sure the 
wheel rim band and tube are centered in 
the wheel groove.
 Patching a punctured tube is not recom-
mended. If it is absolutely necessary to 
do so, use great care and...

CHASSIS
3-34
EAS21670
CHECKING THE WHEELS
The following procedure applies to both of the 
wheels.
1. Check: WheelDamage/out-of-round  → Replace.
WARNING
EWA13260
Never attempt to make any repairs to the 
wheel.
NOTE:
After a tire or wheel has been changed or 
replaced, always balance the wheel.
EAS21690
CHECKING AND LUBRICATING THE 
CABLES
The following procedure applies to all of the 
inner and outer cables.
WARNING
EWA13270
Damaged outer cable may cause the cable 
to corrode and interfere with its...

ELECTRICAL SYSTEM
3-35
EAS21750
ELECTRICAL SYSTEM
EAS21760
CHECKING AND CHARGING THE BATTERY
Refer to ELECTRICAL COMPONENTS on 
page 8-89.
EAS21770
CHECKING THE FUSES
Refer to ELECTRICAL COMPONENTS on 
page 8-89.
EAS21780
REPLACING THE HEADLIGHT BULBS
1. Remove: Headlight side cover bolts “1” (FZ1-N)
2. Disconnect:  Headlight sub-wire harness coupler “2” (FZ1-N)
3. Disconnect:  Headlight coupler “1” 4. Remove:
 Headlight bulb cover “1” (FZ1-S)
5. Remove:  Headlight bulb holder “1”
6. Remove: ...