Engine overheatingEWA10400
s s
WARNING
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.
After removing the radiator cap retaining bolt, 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 his-
sing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
6
PERIODIC MAINTENANCE AND MINOR REPAIR
6-30
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.
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.
1C0-F8199-E2.qxd 06/03/2006 13:08 Página 69
DimensionsOverall length
2210 mm (87.0 in)
Overall width
790 mm (31.1 in)
Overall height
1380 mm (54.3 in)
Seat height
775 mm (30.5 in)
Wheelbase
1545 mm (60.8 in)
Ground clearance
113 mm (4.45 in)
Minimum turning radius
3650 mm (143.7 in)
WeightWith oil and fuel
174 kg (383.67 lb)
EngineEngine type
Liquid cooled 4-stroke, SOHC
Cylinder arrangement
Forward-inclined single cylinder
Displacement
249.7 cm
315.24 cu*in
Bore x stroke
69.0 mm x 66.8 mm (2.71 x 2.63 in)
Compression ratio
10.1:1
Starting system
Electric starter
Lubrication system
Wet sump
Oil type or gradeEngine oil
SAE 10W30
Recommended engine oil grade
API service SE, SF, SG type or higher
Engine oil quantityWithout oil filter element replacement
1.2 L (1.27 US qt) (1.06 Imp qt)
With oil filter element replacement
1.4 L (1.48 US qt) (1.23 Imp qt)
Final transmission oilType
YAMALUBE 4 (10W30) of SAE10W30
type SE motorolie
Quantity
0.25 L (0.26 US qt) (0.22 Imp qt)
Cooling systemRadiator capacity (including all routes)
0.34 L (0.36 US qt) (0.30 Imp qt)
Coolant reservoir capacity (up to the maxi-
mum level mark)
0.46 L (0.49 US qt) (0.40 Imp qt)
Air filterAir filter element
Oil-coated paper element
Recommended fuelRecommended fuel
Unleaded fuel
Fuel tank capacity
12 L (3.17 US gal) (2.64 Imp gal)
Fuel reserve amount
2 L (0.53 US gal) (0.44 Imp gal)
CarburetorManufacturer
KEIHIN
Type x quantity
1C0 x 1
Spark plug (s)Manufacturer/model
NGK / DR8EA
Spark plug gap
0.6-0.7 mm (0.024-0.027 in)
ClutchClutch type
Dry, automatic centrifugal
TransmissionPrimary reduction system
Helical gear
Primary reduction ratio
40/15 (2.666)
Secondary reduction system
Helical gear
Secondary reduction ratio
40/14 (2.857)
Transmission type
V-belt automatic
8
SPECIFICATIONS
8-1
1C0-F8199-E2.qxd 06/03/2006 13:08 Página 74
