Yamaha XT660R S Service Manual

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CHK
ADJ
CHECKING THE ENGINE OIL LEVEL/
CHANGING THE ENGINE OIL
4. Start the engine, warm it up for several min-
utes, and then turn it off.
5. Check the engine oil level again.
NOTE:
_
Before checking the engine oil level, wait a few
minutes until the oil has settled.
EAS00076
CHANGING THE ENGINE OIL
1. Start the engine, warm it up for several min-
utes, and then turn it off.
2. Place a container under the engine.
3. Remove:
• engine oil filler cap 1
• camshaft sprocket cover 2
4. Install the engine oil drain attachment 1
under the engine oil drain bolt of the crank-
case.
NOTE:
“engine oil drain attachment” is a part of the
owner’s tool kit.
5. Remove:
• engine oil drain bolt (crankcase) 2
(along with the gasket)
6. Remove:
• engine oil drain bolt (oil tank) 1
(along with the gasket)
7. Remove:
• oil filter element drain bolt 1
8. Drain:
• engine oil
(completely from the crankcase and the oil
tank)

Yamaha XT660R S Specifications

General

Displacement	660 cc
Bore x Stroke	100.0 mm x 84.0 mm
Compression Ratio	10.0:1
Fuel System	Fuel Injection
Ignition System	TCI
Starter System	Electric
Transmission System	5-speed
Final Drive	Chain
Front Suspension System	Telescopic forks
Front Tyre	90/90-21 M/C 54S
Rear Tyre	130/80-17 M/C 65S
Overall Width	865 mm
Overall Height	1, 230 mm
Seat Height	865 mm
Wheelbase	1, 505 mm
Wet Weight	181 kg
Fuel Tank Capacity	15 litres
Oil Tank Capacity	2.9 litres
Engine Type	Liquid-cooled, 4-stroke, single cylinder, SOHC
Maximum Power	48hp (35kW) @ 6, 000rpm
Frame	Steel diamond
Rear Suspension System	Swingarm, (link suspension)
Front Brake	Single 298mm disc, 2-piston caliper
Rear Brake	Single Disc, 245 mm