Yamaha Fz6n Manual

							3-64
CHECKING AND CHARGING THE BATTERY
CHK
ADJ
Measure the open-circuit
voltage prior to charging.
Connect a charger and
AMP meter to the battery
and start charging.
Make sure that the current
is higher than the standard
charging current written on
the battery.
Charge the battery until the battery’s
charging voltage is 15 V.This type of battery charger cannot
charge the MF battery. A variable
voltage charger is recommended.
Measure the battery open-circuit
voltage after leaving the battery
unused for more than 30 minutes.
12.8 V or more --- Charging is
complete.
12.7 V or less --- Recharging is
required.
Under 12.0 V --- Replace the battery.
Set the charging time at 20 hours
(maximum).
YES NO
NOTE:
Voltage should be measured 30
minutes after the machine is stopped.
NOTE:
Charging method using a constant voltage charger 
						

							3-65
CHECKING AND CHARGING THE BATTERY
CHK
ADJ
CAUTION:
Charging method using a variable-current
(voltage) charger
Charging method using a constant voltage
charger
6. Install:

battery
7. Connect:

battery leads
(to the battery terminals)
First, connect the positive battery lead 
1,
and then the negative battery lead 
2.
8. Check:

battery terminals
Dirt 
 Clean with a wire brush. Loose con-
nection 
 Connect properly.
9. Lubricate:

battery terminals
Recommended lubricant
Dielectric grease
10. Install:

fuel tank
Refer to “FUEL TANK”.

front cowling inner panel (left and right)
Refer to “COWLINGS”.

seat
Refer to “SEAT”. 
						

							3-66
CHECKING THE FUSES
CHK
ADJ
CAUTION:
NOTE:
EAS00181
CHECKING THE FUSES
The following procedure applies to all of the
fuses.
To avoid a short circuit, always set the main
switch to “OFF” when checking or replacing
a fuse.
1. Remove:

right side cover
Refer to “COWLINGS”.
2. Check:
fuse
a. Connect the pocket tester to the fuse and
check the continuity.
Set the pocket tester selector to “Ω  1”.
Pocket tester
90890-03112, YU-3112
b. If the pocket tester indicates “∞”, replace the
fuse.
3. Replace:

blown fuse
a. Set the main switch to “OFF”.
b. Install a new fuse of the correct amperage
rating.
c. Set on the switches to verify if the electrical
circuit is operational.
d. If the fuse immediately blows again, check
the electrical circuit.
Fuses
Amperage
ratingQ’ty
Main30A1
Headlight20A1
Signaling system10A1
Ignition10A1
Fuel injection10A1
Radiator
fan motor20A1
Tail10A1
Back up10A1
Reserve10A, 20A, 30A1 
						

							3-67
CHECKING THE FUSES
CHK
ADJ
WARNING
Never use a fuse with an amperage rating
other than that specified. Improvising or us-
ing a fuse with the wrong amperage rating
may cause extensive damage to the electri-
cal system, cause the lighting and ignition
systems to malfunction and could possibly
cause a fire.
4. Install:

right side cover
Refer to “COWLINGS”. 
						

							3-68
REPLACING THE HEADLIGHT BULBS
CHK
ADJ
WARNING
CAUTION:
EAS00183
REPLACING THE HEADLIGHT BULBS
The following procedure applies to both of the
headlight bulbs.
1. Remove:

front cowling inner panels
Refer to “COWLINGS”.
2. Disconnect:

headlight bulb cover

headlight coupler 
1
3. Remove:

headlight bulb holder 
1
4. Remove:

headlight bulb 
2
Since the headlight bulb gets extremely hot,
keep flammable products and your hands
away from the bulb until it has cooled down.
5. Install:

headlight bulb 
New
Secure the new headlight bulb with the head-
light bulb holder.
Avoid touching the glass part of the head-
light bulb to keep it free from oil, otherwise
the transparency of the glass, the life of the
bulb and the luminous flux will be adversely
affected. If the headlight bulb gets soiled,
thoroughly clean it with a cloth moistened
with alcohol or lacquer thinner.
6. Install:

headlight bulb holder
7. Install:

headlight bulb cover
8. Connect:

headlight coupler
9. Install:

front cowling inner panels
Refer to “COWLINGS”. 
						

							3-69
ADJUSTING THE HEADLIGHT BEAMS
CHK
ADJ
a
b
a
b
a
b
EAS00185
ADJUSTING THE HEADLIGHT BEAMS
The following procedure applies to both of the
headlights.
1. Adjust:

headlight beam (vertically)
a. Turn the adjusting screw 
1 in direction a or
b.
Direction
Headlight beam is raised.
DirectionHeadlight beam is 
lowered.
2. Adjust:

headlight beam (horizontally)
a. Turn the adjusting knob 
2 in direction a or
b.
Left headlight
Direction
Headlight beam moves to
the right.
DirectionHeadlight beam moves to
the left.
Right headlight
Direction
Headlight beam moves to
the left.
DirectionHeadlight beam moves to
the right. 
						

							4-1
4
FRONT WHEEL AND BRAKE DISCSCHAS
Order Job / Part Q’ty Remarks
1
2
3
4
5
6
7
8
9Removing the front wheel and brake
discs
Side reflector (left and right)
Brake hose holder (left and right)
Side reflector bracket
Front brake caliper (left and right)
Front wheel axle pinch bolt
Front wheel axle
Collar (left and right)
Front wheel
Front brake disc (left and right)2
2
1
2
1
1
2
1
2Remove the parts in the order listed.
Place the motorcycle on a suitable stand
so that the front wheel is elevated.
Loosen.
For installation, reverse the removal
procedure.
NOTE:
40 Nm (4.0 m
kg, 29 ft
lb)
18 Nm (1.8 m
kg, 13 ft
lb)
23 Nm (2.3 m
kg, 17 ft
lb)
72 Nm (7.2 m
kg, 52 ft
lb)
6 Nm (0.6 m
kg, 4.3 ft
lb)10 Nm (1.0 m
kg, 7.2 ft
lb)
6 Nm (0.6 m
kg, 4.3 ft
lb)4 Nm (0.4 m
kg, 2.9 ft
lb)
EAS00514
CHASSIS
FRONT WHEEL AND BRAKE DISCS 
						

							4-2
FRONT WHEEL AND BRAKE DISCSCHAS
Order Job / Part Q’ty Remarks
Disassembling the front wheel
Oil seal (left and right)
Wheel bearing (left and right)
Spacer2
2
1Disassemble the parts in the order listed.
For assembly, reverse the disassembly
procedure.
1
2
3
EAS00518 
						

							4-3
FRONT WHEEL AND BRAKE DISCSCHAS
WARNING
NOTE:
NOTE:
NOTE:
WARNING
EAS00521
REMOVING THE FRONT WHEEL
1. Stand the motorcycle on a level surface.
Securely support the motorcycle so that
there is no danger of it falling over.
Place the motorcycle on a suitable stand so that
the front wheel is elevated.
2. Remove:

left brake caliper

right brake caliper
Do not apply the brake lever when removing the
brake calipers.
3. Elevate:

front wheel
Place the motorcycle on a suitable stand so that
the front wheel is elevated.
4. Loosen:

front wheel axle pinch bolt
5. Remove:

front wheel axle

front wheel
EAS00525
CHECKING THE FRONT WHEEL
1. Check:

wheel axle
Roll the wheel axle on a flat surface.
Bends 
 Replace.
Do not attempt to straighten a bent wheel
axle. 
						

							4-4
FRONT WHEEL AND BRAKE DISCSCHAS
NOTE: 2. Check:

tire

front wheel
Damage / wear 
 Replace.
Refer to “CHECKING THE TIRES” and
“CHECKING THE WHEELS” in chapter 3.
3. Measure:

radial wheel runout 
1

lateral wheel runout 2
Over the specified limits 
 Replace.
Radial wheel runout limit
1 mm (0.04 in)
Lateral wheel runout limit
0.5 mm (0.02 in)
4. Check:

wheel bearings
Front wheel turns roughly or is loose 
 Re-
place the wheel bearings.

oil seals
Damage / wear 
 Replace.
5. Replace:

wheel bearings 
New

oil seals 
New
a. Clean the outside of the front wheel hub.
b. Remove the oil seals 
1 with a flat-head
screwdriver.
To prevent damaging the wheel, place a rag 
2
between the screwdriver and the wheel surface.