Yamaha XT660R User Manual

PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
6
WARNING
EWA10360
Never remove the engine oil tank
cap after high-speed operation, oth-
erwise hot engine oil could spout
out and cause damage or injury. Al-
ways let the engine oil cool down
sufficiently before removing the oil
tank cap.
4. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level.
5. Install the oil filler cap.
To change the engine oil (with or
without oil filter element replace-
ment)
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Install the engine oil drain attach-
ment, provided with the owner’s
tool kit, under the drain bolt of the
crankcase.
3. Place an oil pan under the engine
to collect the used oil.
4. Remove the engine oil filler cap
and the drain bolt to drain the oil
from the crankcase.
5. Remove the drain bolt to drain the
oil from the oil tank.
6. Remove the oil filter element drain
bolt to drain the oil from the oil filter
element.
N
O
TE:
Skip steps 7–9 if the oil filter element is
not being replaced.
7. Remove the oil filter element cover
by removing the bolts.
1. Engine oil drain bolt (crankcase)
2. Engine oil drain attachment
1. Engine oil drain bolt (oil tank)
U5VKE1E0.book Page 11 Tuesday, July 18, 2006 1:00 PM

Yamaha XT660R Specifications

General

Displacement	660cc
Bore x Stroke	100.0 mm x 84.0 mm
Compression Ratio	10.0:1
Fuel System	Electronic Fuel Injection
Ignition System	TCI
Starter System	Electric
Transmission	5-speed
Final Drive	Chain
Rear Suspension	Swingarm
Front Tire	90/90-21
Rear Tire	130/80-17
Length	2, 240 mm
Width	865 mm
Height	1, 230 mm
Seat Height	865 mm
Wet Weight	181 kg
Fuel Capacity	15 liters
Lubrication System	Dry sump
Engine Type	Liquid-cooled, 4-stroke, SOHC, 4-valve
Front Suspension	Telescopic fork
Front Brake	Single disc, 298 mm
Rear Brake	Single disc, 245 mm
Maximum Power	35 kW (48 PS) @ 6, 000 rpm
Maximum Torque	58 Nm @ 5, 250 rpm