2001 YAMAHA TTR90 recommended oil

1 - 3
GEN
INFO

IMPORTANT INFORMATION
EC130000
IMPORTANT INFORMATION
EC131002
PREPARATION FOR REMOVAL AND
DISASSEMBLY
1. Remove all dirt, mud, dust, and foreign
material before removal and disassem-
bly.
2. Use proper tools and cleaning equip-
ment. Refer to “SPECIAL TOOLS” sec-
tion.
3. When disassembling the machine, keep
mated parts together. They include
gears, cylinders, pistons, and other
mated parts that have been “mated”
through normal wear. Mated parts must
be reused as an assembly or replaced.
4. During the machine disassembly, clean
all parts and place them in trays in the
order of disassembly. This will speed up
assembly time and help assure that all
parts are correctly reinstalled.
5. Keep away from fire.
EC132000
ALL REPLACEMENT PARTS
1. We recommend to use Yamaha genuine
parts for all replacements. Use oil and/or
grease recommended by Yamaha for
assembly and adjustment.

3 - 5
INSP
ADJ

ENGINE OIL LEVEL INSPECTION
1. Start the engine, warm it up for several
minutes and wait for five minutes.
2. Place the machine on a level place and
hold it up on upright position by placing
the suitable stand under the engine.
3. Remove:
l
Dipstick
1
4. Check:
l
Oil level
Oil level should be between maximum
a
and minimum
b
marks.
Oil level is low
®
Add oil to proper
level.
NOTE:

When inspecting the oil level, do not screw the
dipstick into the oil tank. Insert the gauge
lightly.
(For USA and CDN)
CAUTION:

l
Do not add any chemical additives.
Engine oil also lubricates the clutch and
additives could cause clutch slippage.
l
Do not allow foreign material to enter the
crankcase.
Recommended oil:
At –10 ˚C (10 ˚F) or higher

:
Yamalube 4 (10W-30) or SAE
10W-30 type SE/SF motor oil
At 5 ˚C (40 ˚F) or higher
õ
:
Yamalube 4 (20W-40) or SAE
20W-40 type SE/SF motor oil
010 30 50 70
90110
130
-20
-10 010
20 30 40
50

õ
˚C˚F

ENGINE OIL LEVEL INSPECTION

3 - 6
INSP
ADJ

ENGINE OIL REPLACEMENT
(Except for USA and CDN)
CAUTION:

l
Do not add any chemical additives or use
oils with a grade of CD
a
or higher.
l
Do not use oils labeled “ENERGY CON-
SERVING II”
b
or higher. Engine oil also
lubricates the clutch and additives could
cause clutch slippage.
l
Do not allow foreign materials to enter the
crankcase.
5. Install:
l
Dipstick
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:
l
Dipstick
1

l
Drain 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

5 - 8
CHAS

FRONT FORK
REMOVAL POINTS
Inner tube
1. Remove:
l
Bolt (damper rod)
NOTE:

While holding the damper rod with the damper
rod holder
1
and T-handle
2
, loosen the bolt
(damper rod).
Damper rod holder:
YM-1300/90890-01294
T-handle:
YM-01326/90890-01326
EC555000
ASSEMBLY AND INSTALLATION
Front fork assembly
1. Install:
l
Oil seal
1

NOTE:

Press the oil seal into the outer tube with fork
seal driver weight
2
and fork seal driver
attachment
3
.
2. Fill:
l
Fork oil
3. After filling up, slowly pump the fork up
and down to distribute the fork oil.
Fork seal driver weight:
YM-33963/90890-01184
Fork seal driver attachment:
90890-01186
Oil quantity:
64 cm
3

(2.26 Imp oz, 2.16 US oz)
Recommended oil:
Fork oil 15W or equivalent