Periodic maintenance an d a djustment
6-39
6
EAU86420
En gine overheatin g
WARNING
EWAT1041
Do not remove the ra diator cap when the en gine an d ra diator are hot. Scal din g hot flui d an d steam may be
b lown out un der pressure, which coul d cause serious injury. Be sure to wait until the en gine has coole d.
Place a thick ra g, like a towel, over the ra diator cap, an d then slowly rotate the cap counterclockwise to the
d etent to allow any resi dual pressure to escape. When the hissin g soun d has stoppe d, press down on the cap
while turnin g it counterclockwise, an d then remove the cap.TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool-
ant 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 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.
UBJXE0E0.book Page 39 Tuesday, January 5, 2021 10:42 AM
Specifications
8-1
8
Dimensions:Overall length:2075 mm (81.7 in)
Overall width:
865 mm (34.1 in)
Overall height: 1120 mm (44.1 in)
Seat height: 855 mm (33.7 in)
Wheelbase:
1405 mm (55.3 in)
Ground clearance: 140 mm (5.51 in)
Minimum turning radius: 2.7 m (8.86 ft)Wei ght:Curb weight:
192 kg (423 lb)Engine:Combustion cycle:
4-stroke
Cooling system: Liquid cooled
Valve train: DOHC
Cylinder arrangement:
Inline
Number of cylinders: 2-cylinder
Displacement: 689 cm³
Bore × stroke:
80.0 × 68.6 mm (3.15 × 2.70 in) Starting system:
Electric starter
Engine oil:Recommended brand:
SAE viscosity grades:
10W-40
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Oil change: 2.30 L (2.43 US qt, 2.02 Imp.qt)
With oil filter removal:
2.60 L (2.75 US qt, 2.29 Imp.qt)Coolant quantity:Coolant reservoir (up to the maximum level
mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes): 1.60 L (1.69 US qt, 1.41 Imp.qt)Fuel:Recommended fuel:Unleaded gasoline (E10 acceptable)
Octane number (RON): 90
Fuel tank capacity:
14 L (3.7 US gal, 3.1 Imp.gal)
Fuel reserve amount: 2.7 L (0.71 US gal, 0.59 Imp.gal)
Fuel injection:Throttle body:ID mark: 1WS1 10Drivetrain:Gear ratio:
1st:2.846 (37/13)
2nd:
2.125 (34/16)
3rd: 1.632 (31/19)
4th: 1.300 (26/20)
5th:
1.091 (24/22)
6th: 0.964 (27/28)Front tire:Type:
Tubeless
Size: 120/70 ZR 17M/C(58W)
Manufacturer/model: PIRELLI/MT60RSRear tire:Type:Tubeless
Size: 180/55 ZR 17M/C(73W)
Manufacturer/model:
PIRELLI/MT60RS
UBJXE0E0.book Page 1 Tuesday, January 5, 2021 10:42 AM
