Yamaha XT660X Service Manual

5 - 46
ENG
CLUTCH
2. Measure:
• clutch spring free length a
Out of specification → Replace the clutch
springs as a set.
Clutch spring free length
55.6 mm (2.19 in)
<Limit>: 52.82 mm (2.08 in)
EAS00284
CHECKING THE CLUTCH HOUSING
1. Check:
• clutch housing dogs
Damage/pitting/wear → Deburr the clutch
housing dogs or replace the clutch housing.
NOTE:
_
Pitting on the clutch housing dogs will cause
erratic clutch operation.
EAS00285
CHECKING THE CLUTCH BOSS
1. Check:
• clutch boss splines
Damage/pitting/wear → Replace the clutch
boss.
NOTE:
_
Pitting on the clutch boss splines will cause
erratic clutch operation.
EAS00286
CHECKING THE PRESSURE PLATE
1. Check:
• pressure plate 1
Cracks/damage → Replace.
• bearing 2
Damage/wear → Replace.
1
2
EAS00287
CHECKING THE PULL LEVER SHAFT AND
PULL ROD
1. Check:
• pull lever shaft pinion gear teeth 1
• pull rod teeth 2
Damage/wear → Replace the pull rod and
pull lever shaft pinion gear as a set.
1
2

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