oil temperature YAMAHA TTR90 2002 Owners Manual

3 - 6
INSP
ADJ
ENGINE OIL REPLACEMENT
(Except for USA and CDN)
CAUTION:
lDo not add any chemical additives or use
oils with a grade of CD a or higher.
lDo not use oils labeled “ENERGY CON-
SERVING II” b or higher. Engine oil also
lubricates the clutch and additives could
cause clutch slippage.
lDo not allow foreign materials to enter the
crankcase.
5. Install:
lDipstick
6. Start the engine and let it warm up for
several minutes.
7. Turn off the engine and inspect the oil
level once again.
NOTE:
Wait a few minutes until the oil settles before
inspecting the oil level.
ENGINE OIL REPLACEMENT
1. Start the engine and warm it up for sev-
eral minutes and wait for five minutes.
2. Place the machine on a level place and
hold it on upright position by placing the
suitable stand under the engine.
3. Place a suitable container under the
engine.
4. Remove:
lDipstick 1
lDrain bolt (with gasket) 2
Drain the crankcase of its oil.
Recommended oil:
Refer to the following chart for
selection of oils which are suited
to the atmospheric temperatures.
Recommended engine oil classi-
fication:
API STANDARD:
API “SE/SF” or higher grade
(Designed primarily for motor-
cycles)
a
b

6 - 7
–+ELECCARBURETOR HEATING SYSTEM
EC624000
COUPLERS AND LEADS CONNECTION
INSPECTION
1. Check:
lCouplers and leads connection
Rust/dust/looseness/short-circuit ®
Repair or replace.
CDI MAGNETO INSPECTION
1. Inspect:
lSource coil resistance
Refer to “IGNITION SYSTEM” section.
THERMO SWITCH INSPECTION
1. Inspect:
lThermo switch operation
Faulty operation ® Replace.
Inspection steps:
lRemove the thermo switch.
lConnect the pocket tester to the thermo
switch coupler as shown.
Tester (+) lead ® Black 1
Tester (–) lead ® Black 2
lImmerse the thermo switch in a container
filled with water 3.
lPlace a thermometer 4 in the water.
lSlowly heat the water, and then let it cool to
the specified temperature as indicated in
the table.
lCheck the thermo switch for continuity at
the temperatures indicated in the table.