
SCOOTER CARE AND STORAGE
7-3
2
3
4
5
6
78
9
ed, surfaces.
4. Use spray oil as a universal clean-
er to remove any remaining dirt.
5. Touch up minor paint damage
caused by stones, etc.
6. Wax all painted surfaces.
7. Let the scooter dry completely be-
fore storing or covering it.
WARNING
EWA10942
Contaminants on the brakes or tires
can cause loss of control.
Make sure that there is no oil or
wax on the brakes or tires. If
necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or ac-
etone, and wash the tires with
warm water and a mild deter-
gent.
Before operating the scooter
test its braking performance
and cornering behavior.
NOTICE
ECA10800
Apply spray oil and wax spar-
ingly and make sure to wipe off
any excess.
Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.
Avoid using abrasive polishing
compounds as they will wear
away the paint.
TIP
Consult a Yamaha dealer for ad-
vice on what products to use.
Washing, rainy weather or humid
climates can cause the headlight
lens to fog. Turning the headlight
on for a short period of time will
help remove the moisture from the
lens.
EAU36563
Storage
Short-term
Always store your scooter in a cool, dry
place and, if necessary, protect it
against dust with a porous cover. Be
sure the engine and the exhaust sys-
tem are cool before covering the
scooter.
NOTICE
ECA10820
Storing the scooter in a poorly
ventilated room or covering it
with a tarp, while it is still wet,
will allow water and humidity to
seep in and cause rust.
To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong chemi-
cals are stored.
Long-term
Before storing your scooter for several
months:
1. Follow all the instructions in the
“Care” section of this chapter.
✦✧✯✬✲✦ ✦

SPECIFICATIONS
8-2
1
2
3
4
5
6
7
8
9
Transmission type:
V-belt automatic
Chassis:
Frame type:
Backbone
Caster angle:
27.00 °
Trail:
100 mm (3.9 in)
Front tire:
Type:
Tubeless
Size:
120/80-14M/C 58S
Manufacturer/model:
IRC/MB67
Manufacturer/model:
DUNLOP/D305FL
Rear tire:
Type:
Tubeless
Size:
150/70-13M/C 64S
Manufacturer/model:
IRC/MB67
Manufacturer/model:
DUNLOP/D305L
Loading:
Maximum load:
YP400 188 kg (414 lb)
YP400A 185 kg (408 lb)
* (Total weight of rider, passenger, cargo
and accessories)
Tire air pressure (measured on cold
tires):
Loading condition:
0–90 kg (0–198 lb)
Front:
200 kPa (2.00 kgf/cm
2
, 29 psi)
Rear:
250 kPa (2.50 kgf/cm
2
, 36 psi)
Loading condition:
YP400 90–188 kg (198–414 lb)
YP400A 90–185 kg (198–408 lb)
Front:
200 kPa (2.00 kgf/cm
2
, 29 psi)
Rear:
250 kPa (2.50 kgf/cm
2
, 36 psi)
Front wheel:
Wheel type:
Cast wheel
Rim size:
14M/C x MT3.00
Rear wheel:
Wheel type:
Cast wheel
Rim size:
13M/C x MT4.00
Front brake:
Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4
Rear brake:
Type:
Single disc brake
Operation:
Left hand operation
Recommended fluid:
DOT 4
Front suspension:
Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
120.0 mm (4.72 in)
Rear suspension:
Type:
Unit swing
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
104.0 mm (4.09 in)
Electrical system:
Ignition system:
TCI
Charging system:
AC magneto
Battery:
Model:
GT9B-4
Voltage, capacity:
12 V, 8.0 Ah
Headlight:
Bulb type:
Halogen bulb
✦✧✯✬✲✦ ✥

SPECIFICATIONS
8-3
2
3
4
5
6
7
89
Bulb voltage, wattage
×× × ×
quantity:
Headlight:
12 V, 60 W/55 W
×
1
Headlight:
12 V, 55 W
×
1
Tail/brake light:
LED
Front turn signal light:
12 V, 21.0 W
×
2
Rear turn signal light:
12 V, 21.0 W
×
2
Auxiliary light:
12 V, 5.0 W
×
2
License plate light:
12 V, 5.0 W
×
1
Meter lighting:
12 V, 2.0 W
×
3
High beam indicator light:
12 V, 1.4 W
×
1
Turn signal indicator light:
12 V, 1.4 W
×
2
Engine trouble warning light:
12 V, 1.4 W
×
1
ABS warning light:
YP400A 12 V, 1.4 W
×
1
Immobilizer system indicator light:
LED
Fuses:
Main fuse:
40.0 A
Headlight fuse:
20.0 A
Signaling system fuse:
10.0 AIgnition fuse:
10.0 A
Radiator fan fuse:
10.0 A
Hazard fuse:
10.0 A
Fuel injection system fuse:
10.0 A
ABS control unit fuse:
YP400A 10.0 A
ABS motor fuse:
YP400A 30.0 A
ABS solenoid fuse:
YP400A 20.0 A
Backup fuse:
10.0 A
✦✧✯✬✲✦ ✦

INDEX
A
ABS (for ABS models) ............................. 3-13
ABS warning light (for ABS models) .......... 3-4
Acceleration and deceleration ................... 5-2
Air filter elements and check hoses
and V-belt case air filter element ........... 6-17
Anti-theft alarm (optional) .......................... 3-9
Auxiliary light bulb.................................... 6-35
B
Battery ..................................................... 6-30
Brake fluid, changing ............................... 6-26
Brake fluid level, checking ....................... 6-25
Brake lever, front ..................................... 3-11
Brake lever, rear ...................................... 3-12
Brake levers, lubricating .......................... 6-27
Braking ...................................................... 5-3
C
Cables, checking and lubricating ............. 6-26
Care ........................................................... 7-1
Catalytic converters ................................. 3-16
Centerstand and sidestand, checking
and lubricating ....................................... 6-28
Coolant .................................................... 6-16
Cowlings and panels, removing and
installing .................................................. 6-7
D
Dimmer switch ......................................... 3-10
E
Engine break-in ......................................... 5-4
Engine oil and oil filter element................ 6-12
Engine stop switch................................... 3-10
Engine trouble warning light ...................... 3-3
F
Final transmission oil ............................... 6-15Front and rear brake lever free play,
checking ................................................ 6-23
Front and rear brake pads, checking....... 6-24
Front fork, checking ................................. 6-28
Front turn signal light ............................... 6-34
Fuel ......................................................... 3-15
Fuel consumption, tips for reducing .......... 5-3
Fuel tank cap ........................................... 3-14
Fuses, replacing ...................................... 6-31
H
Handlebar switches ................................. 3-10
Hazard switch .......................................... 3-11
Headlight bulb, replacing ......................... 6-33
High beam indicator light ........................... 3-3
Horn switch.............................................. 3-10
I
Identification numbers ............................... 9-1
Ignition circuit cut-off system ................... 3-22
Immobilizer system.................................... 3-1
Immobilizer system indicator light ............. 3-4
Indicator and warning lights....................... 3-3
L
License plate light bulb, replacing ........... 6-35
M
Main switch/steering lock .......................... 3-2
Maintenance and lubrication, periodic ....... 6-4
Maintenance, emission control system ..... 6-3
Matte color, caution ................................... 7-1
Model label ................................................ 9-1
Multi-function display ................................. 3-5
P
Parking ...................................................... 5-4
Part locations............................................. 2-1
Pass switch ............................................. 3-10
R
Rear brake lock lever .............................. 3-12
Rear brake lock lever cable, adjusting .... 6-24
Rider seat, adjusting ............................... 3-18
S
Safe-riding points ...................................... 1-5
Safety information ..................................... 1-1
Seats ....................................................... 3-17
Shock absorber assemblies,
adjusting ............................................... 3-21
Sidestand ................................................ 3-21
Spark plug, checking............................... 6-10
Specifications ............................................ 8-1
Speedometer ............................................ 3-5
Starting off................................................. 5-2
Starting the engine .................................... 5-1
Start switch ............................................. 3-10
Steering, checking .................................. 6-29
Storage ..................................................... 7-3
Storage compartments............................ 3-19
T
Tachometer ............................................... 3-5
Tail/brake light......................................... 6-33
Throttle grip and cable, checking and
lubricating ............................................. 6-27
Throttle grip free play, checking .............. 6-20
Tires ........................................................ 6-21
Tool kit ...................................................... 6-2
Troubleshooting ...................................... 6-36
Troubleshooting charts ........................... 6-37
Turn signal indicator lights ........................ 3-3
Turn signal light bulb (rear), replacing .... 6-34
Turn signal switch ................................... 3-10
✦✧✯✬✲✦ ✥