Yamaha MT-01 T 2005 User Manual

VALVES AND VALVE SPRINGS
5-38
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a. Apply a coarse lapping compound “a” to the
valve face.
CAUTION:
ECA13790
Do not let the lapping compound enter the
gap between the valve stem and the valve
guide.
b. Apply molybdenum disulfide oil onto the
valve stem.
c. Install the valve into the cylinder head.
d. Turn the valve until the valve face and valve
seat are evenly polished, then clean off all of
the lapping compound.
NOTE:
For the best lapping results, lightly tap the valve
seat while rotating the valve back and forth be-
tween your hands.
e. Apply a fine lapping compound to the valve
face and repeat the above steps.
f. After every lapping procedure, be sure to
clean off all of the lapping compound from the
valve face and valve seat.
g. Apply Mechanic’s blueing dye (Dykem) “b”
onto the valve face.
h. Install the valve into the cylinder head.
i. Press the valve through the valve guide and
onto the valve seat to make a clear impres-
sion.
j. Measure the valve seat width “c” again. If the
valve seat width is out of specification, reface
and lap the valve seat.
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EAS24310
CHECKING THE VALVE SPRINGS
The following procedure applies to all of the
valve springs.
1. Measure:
• Valve spring free length “a”
Out of specification → Replace the valve
spring.
2. Measure:
• Compressed valve spring force “a”
Out of specification → Replace the valve
spring.
Inner spring
Free length (intake)
38.26 mm (1.51 in)
Limit
36.26 mm (1.43 in)
Free length (exhaust)
38.26 mm (1.51 in)
Limit
36.26 mm (1.43 in)
Outer spring
Free length (intake)
43.25 mm (1.70 in)
Limit
41.26 mm (1.62 in)
Free length (exhaust)
43.25 mm (1.70 in)
Limit
41.26 mm (1.62 in)

Yamaha MT-01 T 2005 Specifications

General

Year	2005
Manufacturer	Yamaha
Model	MT-01 T
Category	Naked bike
Displacement	1670 cc
Bore x Stroke	97.0 x 113.0 mm
Compression Ratio	8.36:1
Fuel System	Fuel injection
Ignition	TCI
Lubrication	Wet sump
Clutch	Wet, multiple-disc
Transmission	5-speed
Final Drive	Chain
Frame	Aluminum die-cast
Front Suspension	Telescopic fork
Rear Suspension	Swingarm
Front Brakes	Double disc
Rear Brakes	Single disc
Rear Tire	190/50-ZR17
Overall Length	2185 mm
Overall Height	1105 mm
Seat Height	825 mm
Wheelbase	1525 mm
Ground Clearance	140 mm
Dry Weight	240 kg
Maximum Torque	150.3 Nm (15.3 kgf-m) @ 3750 rpm
Overall Width	800 mm
Fuel Capacity	15.0 litres
Engine Type	V-twin, four-stroke
Front Tire	120/70-ZR17