Yamaha XT660X Service Manual

5 - 74
ENG
CRANKCASE
EAS00418
ASSEMBLING THE CRANKCASE
1. Lubricate:
• bearings
• oil seals
2. Install:
• bearings
• bearing retainer
1
(to the right crankcase)
• bearing retainer bolts
NOTE:
Install the bearing retainer with the “OUT”
mark
a
facing up.
3. Thoroughly clean all the gasket mating sur-
faces and crankcase mating surfaces.
Recommended lubricant
Bearing
Engine oil
Oil seal
Lithium-soap-based grease
New
1
a
T
R
.
.
10 Nm (1.0 m · kg, 7.2 ft · lb)
LT
4. Apply:
• Yamaha bond No. 1215
1
(to the mating surfaces of both crankcase
halves)
NOTE:
_
Do not allow any sealant to come into contact
with the oil gallery.
5. Install:
• dowel pins
• O-rings
Yamaha bond No. 1215
90890-85505
1
New

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