Yamaha XT660X Service Manual

5 - 18
ENG
ROCKER ARMS AND CAMSHAFT
EAS00202
REMOVING THE ROCKER ARMS AND
CAMSHAFT
1. Loosen:
• locknuts
• adjusting screws
2. Remove:
• camshaft retainer
1
1
3. Remove:
• intake rocker arm shaft
• exhaust rocker arm shaft
• intake rocker arm
• exhaust rocker arm
NOTE:
_
Remove the rocker arm shafts with the slide
hammer bolt
1
and weight
2.
4. Remove:
• camshaft
Slide hammer bolt
90890-01083
Weight
90890-01084
1
2
EAS00205
CHECKING THE CAMSHAFT
1. Check:
• camshaft lobes
Blue discoloration/pitting/scratches →
Replace the camshaft and camshaft
sprocket.

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