2000 YAMAHA DT125R check oil

6-12
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
95.Fill the engine with sufficient oil
to reach the specified level.
Install the oil filler cap and tight-
en it.
EC000079
cCDo not put in any chemical addi-
tives. Transmission oil also lubri-
cates the clutch and additives
could cause clutch slippage.6.Start the engine and warm up for
a few minutes. While warming
up, check for oil leakage. If oil
leakage is found, stop the engine
immediately and check for
cause. Recommended oil:
See page 8-1.
Oil quantity:
Total amount: 0.8 L
Periodic oil change: 0.75 L
1
Transmission oil replacement
1.Warm up the engine for several
minutes.
2.Stop the engine. Place an oil pan
under the engine to catch the oil
and remove the oil filler cap.
3.Remove the drain bolt and drain
the oil.
4.Install the drain bolt and tighten it
to the specified torque.1.Drain bolt
Tightening torque:
Drain bolt:
15 Nm (1.5 m
0kg)
1
2.With the engine stopped, check
the oil level through the level
window located at the right side
crankcase cover.NOTE:
Wait a few minutes until the oil level
settles before checking.3.The oil level should be between
the maximum and minimum level
on the level window. If the level
is low, add sufficient oil to raise it
to the specified level.1.Oil filler cap
3MB-9-E7 12/27/00 2:52 PM Page 48

6-24
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
98Use only the designated quality
brake fluid. Otherwise, the rub-
ber seals may deteriorate, caus-
ing leakage and poor brake per-
formance.
NOTE:
If DOT 4 is not available, DOT 3 can
be used.
EAU00732
Inspecting the brake fluid
levelInsufficient brake fluid may let air
enter the brake system, possibly
causing the brakes to become inef-
fective.
Before riding, check that the brake
fluid is above the minimum level and
fill when necessary.
Observe these precautions:
8When checking the fluid level,
make sure the top of the master
cylinder is level by turning the
handlebars.
1
1.Minimum level mark FRONT
1
1.Minimum level markREARRecommended brake fluid:
DOT 4
8Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor brake performance.
8Be careful that water does not
enter the master cylinder when
refilling. Water will significantly
lower the boiling point of the fluid
and may result in vapor lock.
8Brake fluid may deteriorate paint-
ed surfaces or plastic parts.
Always clean up spilled fluid
immediately.
8Have a Yamaha dealer check
the cause if the brake fluid level
goes down.
3MB-9-E7 12/27/00 2:52 PM Page 60

6-25
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
EAU00742
Brake fluid replacementThe brake fluid should be replaced
only by trained Yamaha service per-
sonnel. Have the Yamaha dealer
replace the following components
during periodic maintenance or when
they are damaged or leaking:
8oil seals (every two years)
8brake hoses (every four years)
EAU00744*
Drive chain slack checkNOTE:
Spin the wheel several times and find
the tightest position of the chain.
Check and/or adjust the chain slack
while itÕs in this tightest position.
a
a.Chain slack
To check the chain slack the motor-
cycle must be held straight up with
both wheels on the ground and with-
out rider. Check the slack at the posi-
tion shown in the illustration. Normal
slack is approximately 25 ~ 40 mm. If
the slack exceeds 40 mm, adjust it.
3MB-9-E7 12/27/00 2:52 PM Page 61

6-29
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
EAU02986
Sidestand lubricationLubricate the sidestand pivoting point
and metal-to-metal contact surfaces.
Check that the sidestand moves up
and down smoothly.
EW000113
wIf the sidestand does not move
smoothly, consult a Yamaha deal-
er.
Recommended lubricant:
Engine oil
EAU02939
Front fork inspectionVisual check
EW000115
wSecurely support the motorcycle
so there is no danger of it falling
over.Check for scratches or damage on
the inner tube and excessive oil leak-
age from the front fork.Operation check
1.Place the motorcycle on a level
place.
2.Hold the motorcycle in an upright
position and apply the front
brake.
3.Push down hard on the handle-
bars several times and check if
the fork rebounds smoothly.
EC000098
cCIf any damage or unsmooth move-
ment is found with the front fork,
consult a Yamaha dealer.
3MB-9-E7 12/27/00 2:52 PM Page 65

6-31
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
EAU01071
BatteryCheck the level of the battery elec-
trolyte and make sure that the termi-
nals are tight.
Fill with distilled water if the elec-
trolyte level is low.1.Battery
2.Battery breather hose
EC000099
cCWhen inspecting the battery, be
sure the breather hose is routed
correctly. If the breather hose is
positioned in such a way as to
cause battery electrolyte or gas to
exit onto the frame, structural and
cosmetic damage to the motorcy-
cle can occur.
12
EW000116
wBattery electrolyte is poisonous
and dangerous, causing severe
burns, etc. It contains sulfuric
acid. Avoid contact with skin, eyes
or clothing.
ANTIDOTE:
8 8
EXTERNAL: Flush with water.
8 8
INTERNAL: Drink large quanti-
ties of water or milk. Follow
with milk of magnesia, beaten
egg, or vegetable oil. Call a
physician immediately.
8 8
EYES: Flush with water for 15
minutes and get prompt med-
ical attention.
Batteries produce explosive
gases. Keep sparks, flame, ciga-
rettes etc., away. Ventilate when
charging or using in an enclosed
space. Always shield your eyes
when working near batteries.
KEEP OUT OF REACH OF CHIL-
DREN.
3MB-9-E7 12/27/00 2:52 PM Page 67