Yamaha XT660Z Tenere 2008 User Manual

3-3
ENGINE
ENGINE
EAS00049
ADJUSTING THE VALVE CLEARANCE
The following procedure applies to all of the
valves.
NOTE:
• Valve clearance adjustment should be made
on a cold engine, at room temperature.
• When the valve clearance is to be measured
or adjusted, the piston must be at top dead
center (TDC) on the compression stroke.
1. Remove:
• Seat
Refer to “GENERAL CHASSIS” on page
4-1.
• Fuel tank
Refer to “FUEL TANK” on page 7-1.
• Radiator
Refer to “RADIATOR” on page 6-1.
• Air-filter-to-air-cut-off-valve hose
Refer to “AIR INDUCTION SYSTEM” on
page 7-11.
2. Remove:
• Intake tappet cover
• Exhaust tappet cover “1”
• Camshaft sprocket cover “2”
3. Disconnect:
• Spark plug cap “1”
4. Remove:
• Spark plug “2”
2
1
5. Remove:
• Timing mark accessing screw “1”
• Crankshaft end accessing screw “2”
6. Valve clearance
• Out of specification → Adjust.
1
2
1
2
Valve clearance (cold)
Intake valve
0.09-0.13 mm (0.0035-0.0051 in)
Exhaust valve
0.16-0.20 mm (0.0063-0.0079 in)
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Turn the crankshaft counterclockwise.
b. When the piston is at the top dead center
(TDC) on the compression stroke, align the
“I” mark “a” on the A.C. magneto rotor with
the stationary pointer “b” on the A.C. magne-
to cover.
b
a

Yamaha XT660Z Tenere 2008 Specifications

General

Displacement	660cc
Compression Ratio	10.0:1
Maximum Power	35.0 kW (48 PS) @ 6, 000 rpm
Fuel System	Fuel injection
Ignition System	TCI
Starter System	Electric
Transmission	5-speed
Final Drive	Chain
Front Suspension	Telescopic forks
Front Tire	90/90-21
Rear Tire	130/80-17
Seat Height	895 mm
Dry Weight	183 kg
Front Suspension Travel	210 mm
Rear Suspension Travel	200 mm
Height	1, 477 mm
Wheelbase	1, 505 mm
Ground Clearance	260 mm
Engine Type	Single cylinder, 4-stroke, SOHC, 4 valves
Bore x Stroke	100 mm x 84 mm
Rear Suspension	Swingarm
Rear Brake	Single disc, Ø 245 mm
Fuel Capacity	22 litres
Wet Weight	206 kg
Front Brake Disc	298 mm
Rear Brake Disc	245 mm
Width	865 mm
Length	2, 246 mm