2007 YAMAHA GIGGLE50 engine

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EAU17226
PERIODIC MAINTENANCE AND MINOR REPAIR
Troubleshooting charts
EAU42700
Troubleshooting chartsStarting problems or poor engine performance
EWA10840
wKeep away open flames and do not smoke while checking or working on the fuel system.
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.
15P-F8199-E0_ch6.pmd2007/06/21, 11:09 25

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EAU17226
PERIODIC MAINTENANCE AND MINOR REPAIREngine overheating
EWAT1040
w● ●● ●
●
Do 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.
● ●● ●
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Place 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.
NOTE:
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.
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 NOTE.)
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.
15P-F8199-E0_ch6.pmd2007/06/21, 11:09 26

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SCOOTER CARE AND STORAGE
Care
EAU25991
SCOOTER CARE AND STORAGE
EAU26091
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
overall appearance of a scooter. Fre-
quent and proper care does not only
comply with the terms of the warranty,
but it will also keep your scooter look-
ing 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 wheelaxles. Always rinse the dirt and
degreaser off with water.
Cleaning
ECA10781
cC● ●● ●
●
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 af-
fected area any longer than in-
structed. Also, thoroughly rinse
the area off with water, immedi-
ately dry it, and then apply a cor-
rosion protection spray.
● ●● ●
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Improper cleaning can damage
plastic parts such as cowlings,
panels, windshields, headlight
lenses, meter lenses, etc. Use
only a soft, clean cloth or sponge
with mild detergent and water to
clean plastic.
● ●● ●
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Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent orthinner, fuel (gasoline), rust re-
movers or inhibitors, brake fluid,
antifreeze or electrolyte.
● ●● ●
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Do not use high-pressure wash-
ers or steam-jet cleaners since
they cause water seepage and
deterioration in the following
areas: seals (of wheel and
swingarm bearings, fork and
brakes), electric components
(couplers, connectors, instru-
ments, switches and lights),
breather hoses and vents.
● ●● ●
●
For scooters equipped with a
windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or
scratching. Some cleaning com-
pounds for plastic may leave
scratches on the windshield.
Test the product on a small hid-
den part of the windshield to
make sure that it does not leave
any marks. If the windshield is
scratched, use a quality plastic
polishing compound after wash-
ing.
15P-F8199-E0_ch7.pmd2007/06/13, 11:18 1

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SCOOTER CARE AND STORAGE
away the paint.
NOTE:
Consult a Yamaha dealer for advice on
what products to use.
EAU36560
StorageShort-term
Always store your scooter in a cool, dry
place and, if necessary, protect it
against dust with a porous cover.
ECA10820
cC● ●● ●
●
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.
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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
stabilizer (if available) to prevent the
fuel tank from rusting and the fuel
from deteriorating. Storage
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.
EWA10950
wTo prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over.
15P-F8199-E0_ch7.pmd2007/06/13, 11:18 3

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SPECIFICATIONS
Specifications
EAU26320
SPECIFICATIONS
DimensionsOverall 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
SAE10W40
-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
SAE10W30 type SE motor oil
Quantity
0.10 L (0.11 US qt) (0.09 Imp.qt)Cooling systemCoolant reservoir capacity (up to the maxi-
mum 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 element”FuelRecommended 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
MIKUNI”Spark plug (s)Manufacturer/model
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
15P-F8199-E0_ch8.pmd2007/07/18, 12:26 1

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SPECIFICATIONSTrail
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-6022
Maximum load
177 kg (390 lb)Tire air pressure (measured on cold
tires)Front
175 kPa (25 psi) (1.75 kgf/cm
2) (1.75 bar)
Rear
175 kPa (25 psi) (1.75 kgf/cm2) (1.75 bar)
Front wheelWheel type
Cast wheel
Rim size
10 x 3.00Rear wheelWheel type
Cast wheel
Rim 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
Transistorized coil ignition
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
License plate light (15P3/15P4)
12 V, 5.0 W x 1
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
15P-F8199-E0_ch8.pmd2007/07/18, 12:26 2

INDEX
AAcceleration and deceleration ................. 5-2
Air filter element, replacing .................... 6-12BBattery.................................................... 6-20
Brake lever free play, adjusting .............. 6-15
Brake lever, front ...................................... 3-6
Brake lever, rear ....................................... 3-6
Brake levers, lubricating......................... 6-17
Brake shoes, checking ........................... 6-16
Braking..................................................... 5-2CCare .......................................................... 7-1
Catalytic converter ................................... 3-8
Centerstand, checking and lubricating .. 6-18
Coolant................................................... 6-10
Coolant temperature warning light ........... 3-3DDimmer switch.......................................... 3-5EEngine break-in........................................ 5-3
Engine oil................................................. 6-7
Engine trouble warning light .................... 3-3FFinal transmission oil............................... 6-9
Front fork, checking............................... 6-18
Fuel .......................................................... 3-7
Fuel gauge............................................... 3-4
Fuel tank cap........................................... 3-6
Fuse, replacing ...................................... 6-21HHandlebar switches .................................. 3-5
Headlight bulb, replacing....................... 6-22
Helmet holder........................................... 3-9High beam indicator light ......................... 3-3
Horn switch .............................................. 3-5
IIdentification numbers.............................. 9-1
Indicator and warning lights ..................... 3-2KKey identification number ......................... 9-1
Keyhole cover ........................................... 3-2
Kickstarter ................................................ 3-8LLuggage hook.......................................... 3-9MMain switch/steering lock ......................... 3-1
Maintenance, periodic .............................. 6-1
Model label............................................... 9-2PPanels, removing and installing............... 6-5
Parking..................................................... 5-3
Part locations........................................... 2-1
Periodic maintenance and lubrication
chart ....................................................... 6-2
Pre-operation check list ........................... 4-2RRear brake lever free play, adjusting ..... 6-16SSafe-riding points ..................................... 1-4
Safety information .................................... 1-1
Seat.......................................................... 3-9
Spark plug, checking ............................... 6-6
Specifications........................................... 8-1
Speedometer unit..................................... 3-4
Start switch .............................................. 3-5
Starting off ................................................ 5-2
Starting the engine ................................... 5-1Steering, checking ................................. 6-19
Storage ..................................................... 7-3
Storage compartment ............................ 3-10
TTail/brake light bulb, replacing................ 6-23
Throttle cable free play, checking .......... 6-12
Throttle grip and cable, checking and
lubricating............................................ 6-17
Tires ....................................................... 6-13
Troubleshooting...................................... 6-24
Troubleshooting charts ........................... 6-25
Turn signal indicator light......................... 3-3
Turn signal light bulb, replacing............. 6-24
Turn signal switch ..................................... 3-5VValve clearance ...................................... 6-12
Vehicle identification number ................... 9-1WWheel bearings, checking ...................... 6-19
Wheels................................................... 6-15
15P-F8199-E0_ch9ind.pmd2007/06/16, 16:02 3