Yamaha Mt 01 T 2005 Manual

ENGINE
3-6
2. Remove:
Seat
Refer to “GENERAL CHASSIS” on page 4-1.
Fuel tank
Refer to “FUEL TANK” on page 6-1.
Air filter case
Refer to “GENERAL CHASSIS” on page 4-1.
3. Disconnect:
Intake solenoid vacuum hose (one-way valve 
to throttle body) “1”
Cylinder-#1 intake air pressure sensor hose 
“2”
4. Install:
Fuel hose “1” (Parts No.: 5JW-24311-00)
3-way joint “2” (Parts No.: 90413-05014)
Cylinder-#1 intake air pressure sensor hose 
“3”
Vacuum gauge hose for #1 “4”
Vacuum gauge hose for #2 “5”...

ENGINE
3-7
9. Install:
Air filter case
Refer to “GENERAL CHASSIS” on page 4-1.
Fuel tank
Refer to “FUEL TANK” on page 6-1.
Seat
Refer to “GENERAL CHASSIS” on page 4-1.
EAS20630ADJUSTING THE THROTTLE CABLE FREE 
PLAY
1. Check:
Throttle cable free play “a”
Out of specification → Adjust.
2. Remove:
Pressure regulator cover “1”
3. Adjust:
Throttle cable free play
NOTE:
When the throttle is opened, the accelerator ca-
ble “1” is pulled.



 





 
 








 
 



 
 



 



Throttle body side
a....

ENGINE
3-8
c. Tighten the locknut “1”.
WARNING
EWA12910
After adjusting the throttle cable free play, 
start the engine and turn the handlebar to the 
right and to the left to ensure that this does 
not cause the engine idling speed to change.
        
4. Install:
Pressure regulator cover
EAS20680CHECKING THE SPARK PLUGS
The following procedure applies to all of the 
spark plugs.
1. Remove:
Seat
Refer to “GENERAL CHASSIS” on page 4-1.
Fuel tank
Refer to “FUEL TANK” on...

ENGINE
3-9
1. Stand the vehicle on a level surface.
2. Remove:
Air duct “1”
Timing mark accessing screw “2”
3. Connect:
Timing light “1”
Digital tachometer
4. Check:
Ignition timing



 





 
 








 
 



 
 



 



a. Start the engine, warm it up for several min-
utes, and then let it run at the specified en-
gine idling speed.
b. Check that pointer “a” on the clutch cover is 
within the firing range “b” on the crankshaft 
position sensor.
Incorrect firing range → Check the ignition...

ENGINE
3-10
5. Disconnect:
Spark plug cap
6. Remove:
Spark plug
CAUTION:
ECA13340
Before removing the spark plugs, use com-
pressed air to blow away any dirt accumulat-
ed in the spark plug wells to prevent it from 
falling into the cylinders.
7. Install:
Compression gauge “1”
Extension “2”
8. Measure:
Compression pressure
Out of specification → Refer to steps (c) and 
(d).



 





 
 



 
 



 
 



 
 



 



a. Set the main switch to “ON”.
b. With the throttle wide open, crank the engine...

ENGINE
3-11
EAS20730CHECKING THE ENGINE OIL LEVEL
1. Stand the vehicle on a level surface.
NOTE:
Place the vehicle on a suitable stand.
Make sure the vehicle is upright.
2. Start the engine, warm it up for approximately 
15 minutes until the oil temperature rises to 
60 °C (140 °F), and then turn it off.
3. Remove:
Dipstick “1”
4. Check:
Engine oil level
The engine oil level should be between the 
minimum level mark “a” and maximum level 
mark “b”.
Below the minimum level mark → Add the 
recommended...

ENGINE
3-12
6. Remove:
Engine oil drain bolt (crankcase) “1”
7. Drain:
Engine oil
(completely from the oil tank and crankcase)
8. If the oil filter cartridge is also to be replaced, 
perform the following procedure.



 





 
 








 
 



 
 



 



a. Remove the rectifier/regulator “1”.
b. Remove the oil filter cartridge “1” with an oil 
filter wrench “2”.
c. Lubricate the O-ring “1” of the new oil filter 
cartridge with a thin coat of engine oil.
CAUTION:
EC5YU1019
Make sure the O-ring “1” is...

ENGINE
3-13
NOTE:
Pour the engine oil in two stages. First, pour in 
2.5 L of oil, then start the engine and rev it 3 to 5 
times. Stop the engine, and then pour in the re-
mainder of the specified amount.
CAUTION:
EC5YU1004
When starting the engine make sure the dip-
stick is securely fitted into the oil tank.
12.Fill: (when engine is disassembled)
Crankcase and oil tank
(with the specified amount of the recom-
mended engine oil)
NOTE:
After the engine has been disassembled, pour 
the specified amount...

ENGINE
3-14
        
EAS20890CHECKING THE CLUTCH FLUID LEVEL
1. Stand the vehicle on a level surface.
NOTE:
Place the vehicle on a suitable stand.
Make sure the vehicle is upright.
2. Check:
Clutch fluid level
Below the minimum level mark “a” → Add the 
recommended clutch fluid to the proper level.
WARNING
EWA13370
Use only the designated clutch fluid. Other 
clutch fluids may cause the rubber seals to 
deteriorate, causing leakage and poor 
clutch performance.
Refill...

ENGINE
3-15
d. Place the other end of the hose into a con-
tainer.
e. Slowly squeeze the clutch lever several 
times.
f. Fully squeeze the clutch lever without releas-
ing it.
g. Loosen the bleed screw. This will release the 
tension and cause the clutch lever to contact 
the handlebar grip.
h. Tighten the bleed screw and then release the 
clutch lever.
i. Repeat steps (e) to (h) until all of the air bub-
bles have disappeared from the clutch fluid in 
the plastic hose.
j. Tighten the bleed screw to...