Yamaha XT660X Service Manual

5 - 44
ENG
CLUTCH
EAS00275
REMOVING THE CLUTCH
1. Remove:
• clutch cover
1
NOTE:
Loosen each bolt 1/4 of a turn at a time, in
stages and in a crisscross pattern. After all of
the bolts are fully loosened, remove them.
1
2. Straighten the lock washer tab.
3. Loosen:
• clutch boss nut
1
NOTE:
_
While holding the clutch boss
2 with the uni-
versal clutch holder 3, loosen the clutch boss
nut.
4. Remove:
• clutch boss nut
• lock washer
• clutch boss
Universal clutch holder
90890-04086
3
2
1
EAS00280
CHECKING THE FRICTION PLATES
The following procedure applies to all of the
friction plates.
1. Check:
• friction plate 1
• friction plate 2
• friction plate 3
Damage/wear → Replace the friction plates
as a set.

Yamaha XT660X Specifications

General

Displacement	660cc
Bore x Stroke	100.0 mm x 84.0 mm
Compression Ratio	10.0:1
Fuel System	Fuel Injection
Ignition System	TCI
Transmission	5-speed
Final Drive	Chain
Rear Brake	Single disc, Ø 245 mm
Front Tyre	120/70 R17
Rear Tyre	160/60 R17
Maximum Power	48 HP (35.3 kW) @ 6, 000 rpm
Maximum Torque	58.4Nm (43.1lb-ft) @ 5, 250rpm
Front Suspension	Telescopic fork
Rear Suspension	Swingarm, (link suspension)
Fuel Tank Capacity	15 litres
Engine Type	Liquid-cooled, 4-stroke, single cylinder, SOHC, 4-valves