2009 YAMAHA GIGGLE50 engine

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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
ZAUM00**
1
1. Coolant reservoir cap3. If the coolant is at or below the mini-
mum level mark, remove panel B
and the reservoir cap. (See page 6-
5.) WARNING! Remove only the
coolant reservoir cap. Never at-
tempt to remove the radiator cap
when the engine is hot.
[EWA15161]
4. Add coolant or distilled water to
raise the coolant to the maximum
level mark, and install the coolant
reservoir cap and the panel.
NOTICE:
If coolant is not avail-
able, use distilled water or soft
tap water instead. Do not use hard
water or salt water since it isharmful to the engine. If water
has been used instead of cool-
ant, replace it with coolant as
soon as possible, otherwise the
cooling system will not be pro-
tected against frost and corro-
sion. If water has been added to
the coolant, have a Yamaha
dealer check the antifreeze con-
tent of the coolant as soon as
possible, otherwise the effective-
ness of the coolant will be
reduced.
[ECA10472]
Coolant reservoir capacity:
0.26 L (0.27 US qt, 0.23 Imp.qt)
EAUT1990
Replacing the air filter ele-
mentThe air filter element must be replaced
and the check hoses must be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart. Have
a Yamaha dealer replace the air filter el-
ement. Air filter element, replacing

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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
EAU21382
Checking the throttle cable
free playThe throttle cable free play should mea-
sure 1.5~3.5 mm (0.06~0.14 in) at the
throttle grip. Periodically check the
throttle cable free play and, if necessary,
have a Yamaha dealer adjust it. Throttle cable free play, checking
Valve clearance
Tires
EAU21401
Valve clearanceThe valve clearance changes with use,
resulting in improper air-fuel mixture and/
or engine noise. To prevent this from
occurring, the valve clearance must be
adjusted by a Yamaha dealer at the in-
tervals specified in the periodic mainte-
nance and lubrication chart.
EAUT2141
TiresTo maximize the performance, durabil-
ity, and safe operation of your vehicle,
note the following points regarding the
specified tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
EWA10501
WARNING
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or death from loss of con-
trol.
8 88 8
8The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).
8 88 8
8The tire air pressure must be
adjusted in accordance with the
riding speed and with the total
weight of rider, passenger, cargo,

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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
Troubleshooting char ts
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Operate the electric starter.
6-24
EAU42701
Troubleshooting chartsStarting problems or poor engine performance

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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
6-25
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
Engine overheating
EWAT1040
WARNING
8 88 8
8Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
8 88 8
8Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the
detent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the cap
while turning it counterclockwise, and then remove the cap.TIP
If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolant
as soon as possible.

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EAU25991
SCOOTER CARE AND STORAGE
7-1
EAU25991
SCOOTER CARE AND STORAGE
EAU37833
Matte color caution
ECA15192
NOTICESome models are equipped with
matte colored finished parts. Be sure
to consult a Yamaha dealer for ad-
vice on what products to use before
cleaning the vehicle.
Using a brush, harsh chemical prod-
ucts or cleaning compounds when
cleaning these parts will scratch or
damage their surface. Wax also
should not be applied to any matte
colored finished parts.Matte color, caution
Care
EAU26093
CareWhile the open design of a scooter re-
veals the attractiveness of the technol-
ogy, it also makes it more vulnerable.
Rust and corrosion can develop even if
high-quality components are used. A
rusty exhaust pipe may go unnoticed on
a car, however, it detracts from the over-
all appearance of a scooter. Frequent and
proper care does not only comply with
the terms of the warranty, but it will also
keep your scooter looking good, extend
its life and optimize its performance.
Before cleaning
1. Cover the muffler outlet with a plas-
tic bag after the engine has cooled
down.
2. Make sure that all caps and cov-
ers as well as all electrical couplers
and connectors, including the spark
plug cap, are tightly installed.
3. Remove extremely stubborn dirt,
like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such prod-ucts onto seals, gaskets and wheel
axles. Always rinse the dirt and
degreaser off with water.
Cleaning
ECA10782
NOTICE● ●● ●
●
Avoid using strong acidic wheel
cleaners, especially on spoked
wheels. If such products are used
on hard-to-remove dirt, do not
leave the cleaner on the affected
area any longer than instructed.
Also, thoroughly rinse the area
off with water, immediately dry it,
and then apply a corrosion pro-
tection spray.
● ●● ●
●
Improper cleaning can damage
plastic parts (such as cowlings,
panels, windshields, headlight
lenses, meter lenses, etc.) and
the mufflers. Use only a soft,
clean cloth or sponge with water
to clean plastic. However, if the
plastic parts cannot be thor-
oughly cleaned with water, di-

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EAU25991
SCOOTER CARE AND STORAGE
7-4
stabilizer (if available) to prevent the
fuel tank from rusting and the fuel
from deteriorating.
3. Perform the following steps to pro-
tect the cylinder, piston rings, etc.
from corrosion.
a. Remove the spark plug cap and
spark plug.
b. Pour a teaspoonful of engine oil
into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap from
the spark plug, and then install
the spark plug and the spark plug
cap. WARNING! To prevent dam-
age or injury from sparking,
make sure to ground the sparkplug electrodes while turning
the engine over.
[EWA10951]
4. Lubricate all control cables and the
pivoting points of all levers and
pedals as well as of the sidestand/
centerstand.
5. Check and, if necessary, correct
the tire air pressure, and then lift
the scooter so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a plas-
tic bag to prevent moisture from en-
tering it.
7. Remove the battery and fully charge
it. Store it in a cool, dry place and
charge it once a month. Do not store
the battery in an excessively cold
or warm place [less than 0 °C (30
°F) or more than 30 °C (90 °F)]. For
more information on storing the
battery, see page 6-19. Storage
EAU36561
StorageShort-term
Always store your scooter in a cool, dry
place and, if necessary, protect it against
dust with a porous cover.
ECA10820
NOTICE● ●● ●
●
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 chemicals are
stored.
Long-term
Before storing your scooter for several
months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. Fill up the fuel tank and add fuel

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EAU26320
SPECIFICATIONS
8-1
EAU26320
SPECIFICATIONSSpecificationsDimensionsOverall length
1915 mm (75.4 in)
Overall width
695 mm (27.4 in)
Overall height
1040 mm (40.9 in)
Seat height
750 mm (29.5 in)
Wheelbase
1280 mm (50.4 in)
Ground clearance
115 mm (4.53 in)
Minimum turning radius
2000 mm (78.7 in)WeightWith oil and fuel
93.0 kg (205 lb)EngineEngine type
Liquid cooled 4-stroke, SOHC
Cylinder arrangement
Forward-inclined single cylinder
Displacement
49.0 cm
3
Bore x stroke
38.0 x 43.6 mm (1.50 x 1.72 in)
Compression ratio
12.00 :1
Starting system
Electric starter and kickstarter
Lubrication system
Wet sump
Engine oilType
SAE 10W-40
-10 0 10 20 30
40 -20
50
C
SAE 10W-30
SAE 10W-40
SAE 15W-40SAE 20W-40SAE 20W-50
Recommended engine oil grade
API service SG type or higher, JASO
standard MA
Periodic oil change
0.78 L (0.82 US qt, 0.69 Imp.qt)Final transmission oilType
SAE 10W-30 type SE motor oil
Quantity
0.10 L (0.11 US qt, 0.09 Imp.qt)Cooling systemCoolant reservoir capacity (up to the
maximum level mark)
0.26 L (0.27 US qt, 0.23 Imp.qt)
Radiator capacity (including all routes)
0.50 L (0.53 US qt, 0.44 Imp.qt)Air filterAir filter element
Wet elementFuelRecommended fuel
Regular unleaded gasoline onlyFuel tank capacity
4.5 L (1.19 US gal, 0.99 Imp.gal)
Throttle bodyType/quantity
3B31 00(SE AC19-1) / 1
Manufacturer
MIKUNISpark plug (s)Manufacturer/mode
NGK/CR7E
Spark plug gap
0.7-0.8 mm (0.028-0.031 in)ClutchClutch type
Dry, centrifugal automaticTransmissionPrimary reduction system
Helical gear
Primary reduction ratio
50/13 (3.846)
Secondary reduction system
Helical gear
Secondary reduction ratio
43/12 (3.583)
Transmission type
V-belt automatic
Operation
Centrifugal automatic typeChassisFrame type
Steel tube backbone
Caster angle
26.00 degree

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EAU26320
SPECIFICATIONS
8-2 Trail
84.0 mm (3.31 in)
Front tireType
Tubeless
Size
120/90-10 57J
Manufacturer/model
CHENG SHIN / C-6022Rear tireType
Tubeless
Size
120/90-10 57J
Manufacturer/model
CHENG SHIN / C-6022LoadingMaximum load
177 kg (390 lb)Tire air pressure (measured on cold
tires)Front
175 kPa (1.75 kgf/cm
2, 25 psi, 1.75 bar)
Rear
175 kPa (1.75 kgf/cm2, 25 psi, 1.75 bar)
Front wheelWheel type
Cast wheel
Rim size
10 x 3.00Rear wheelWheel type
Cast wheelRim size
10 x 3.00
Front brakeType
Drum brake
Operation
Right hand operationRear brakeType
Drum brake
Operation
Left hand operationFront suspensionType
Telescopic fork
Spring/shock absorber type
Coil spring
Wheel travel
65.0 mm (2.56 in)Rear suspensionType
Unit swing
Spring/shock absorber type
Coil spring
Wheel travel
56.0 mm (2.20 in)Electrical systemIgnition system
TCI
Charging system
AC magnetoBatteryModel
GTX5L-BSVoltage, capacity
12 V, 4.0 Ah
HeadlightBulb type
Halogen bulbBulb voltage, wattage x quantityHeadlight
12 V, 35 W/35.0 W x 1
Tail/brake light
12 V, 5.0 W/21.0 W x 1
Front turn signal light
12 V, 10.0 W x 2
Rear turn signal light
12 V, 10.0 W x 2
Meter lighting
12 V, 1.7 W x 1
High beam indicator light
12 V, 1.7 W x 1
Turn signal indicator light
14 V, 3.0 W x 1
Coolant temperature warning light
12 V, 1.7 W x 1
Engine trouble warning light
12 V, 1.7 W x 1FusesMain fuse
15.0 A