2002 YAMAHA NEO115 oil level
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4-1
4
EAU01114
4-PRE-OPERATION CHECKS
The condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,
even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage or loss
of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual inspec-
tion, to check the following points before each ride.
EAU03439
Pre-operation check list
CO-01E
ITEM CHECKS PAGE
FuelCheck fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.3-5
Engine oilCheck oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage.6-9
Final transmission oil
Check vehicle for oil leakage. 6-11–6-12
Front brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.6-21–6-24
Rear brakeCheck operation.
Check lever free play.
Adjust if necessary.6-22–6-23
Throttle gripMake sure that operation is smooth.
Check cable free play.
If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.6-17–6-18, 6-26
Control cablesMake sure that operation is smooth.
Lubricate if necessary.6-25
Wheels and tiresCheck for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.6-19–6-21
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-2
6
EAU00473
Periodic maintenance and lubrication chart
CP-03ENO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (
×1,000 km)
0.5 2 4 8 12
1*Fuel line
Check fuel hoses and vacuum hose for cracks or damage.√√√√
2 Spark plugCheck condition.
Clean and regap.√√√√√
Replace if necessary.√√√
3*ValvesCheck valve clearance.
Adjust.√√√√√
4 Air filter element
Clean. Replace if necessary.√√√√
5V-belt case air filter
elementsClean. Replace if necessary.√√√√
6*BatteryCheck electrolyte level and specific gravity.
Make sure that the breather hose is properly routed.√√√√
7*Front brakeCheck operation, fluid level and vehicle for fluid leakage.
(See NOTE on page 6-3.)
Replace brake pads if necessary.√√√√√
8*Rear brakeCheck operation and adjust brake lever free play.
Replace brake shoes if necessary.√√√√√
9*WheelsCheck runout, spoke tightness and for damage.
Tighten spokes if necessary.√√√√
10*Wheel bearings
Check bearing for looseness or damage.√√√√
11*SwingarmCheck operation and for excessive play.
Lubricate with lithium-soap based grease, every 24,000 km.√√√√
12*Steering bearingsCheck bearing play and steering for roughness.
Lubricate with lithium-soap-based grease, every 12,000 km.√√√√√
13*Chassis fasteners
Make sure that all nuts, bolts and screws are properly tightened.√√√√
14 Sidestand/centerstandCheck operation.
Lubricate.√√√√
15*Front fork
Check operation and for oil leakage.√√√√
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
6
* Since these items require special tools, data and technical skills, have a Yamaha dealer perform the service.
EAU03057*
NOTE:_
From 16,000 km, repeat the maintenance intervals starting from 4,000 km.
Depending on riding conditions, the V-belt replacement interval may vary.
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
Hydraulic brake system
After disassembling the brake master cylinder, and caliper cylinder, always change the fluid. Regularly check the
brake fluid level and fill reservoir as required.
Replace the oil seals on the inner parts of the brake master cylinder and caliper cylinder every two years.
Replace the brake hose every four years or if cracked or damaged.
_16
*Shock absorber
assembliesCheck operation and shock absorbers for oil leakage.√√√√
17*CarburetorCheck starter (choke) operation.
Adjust engine idling speed.√√√√√
18 Engine oilChange.
Check oil level and vehicle for oil leakage.√√Every 2,000 km
19*Engine oil strainer
Clean.√√
20 Final transmission oilCheck vehicle for oil leakage.√√√√√
Change.√Every 10,000 km
21*V-beltCheck the damage and wear.√√√
Replace. Every 25,000 km (See NOTE.)
22*Front and rear brake
switchesCheck operation.√√√√√
23 Moving parts and cables
Lubricate.√√√√
24*Lights, signals and
switchesCheck operation.
Adjust headlight beam.√√√√√ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (
×1,000 km)
0.5 2 4 8 12
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6
EAUT0016*
Engine oil and oil strainer The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil strainer
cleaned at the intervals specified in the
periodic maintenance and lubrication
chart.
To check the engine oil level
1. Place the motorcycle on the cen-
terstand.NOTE:_ Make sure that the motorcycle is posi-
tioned straight up when checking the oil
level. A slight tilt to the side can result in
a false reading. _2. Start the engine, warm it up for
several minutes, and then turn it
off.3. Wait a few minutes until the oil set-
tles, remove the oil filler cap, wipe
the dipstick clean, insert it back
into the oil filler hole (without
screwing it in), and then remove it
again to check the oil level.
NOTE:_ The engine oil should be between the
minimum and maximum level marks. _4. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level.
1. Engine oil filler cap
1. Dipstick
2. Maximum level mark
3. Minimum level mark
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PERIODIC MAINTENANCE AND MINOR REPAIR
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6
NOTE:_ Make sure that the O-ring is properly
seated. _7. Add the specified amount of the
recommended engine oil, and
then install and tighten the engine
oil filler cap.
ECA00105
CAUTION:_
In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives with
the oil or use oils of grade “CD”
or higher. In addition, do not
use oils labeled “ENERGY CON-
SERVING II” or higher.
Make sure that no foreign mate-
rial enters the crankcase.
_8. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.
9. Turn the engine off, and then
check the oil level and correct it if
necessary.
EAU04228*
Final transmission oil The final transmission case must be
checked for oil leakage before each
ride. If any leakage is found, have a
Yamaha dealer check and repair the
motorcycle. In addition, the final trans-
mission oil must be changed as follows
at the intervals specified in the periodic
maintenance and lubrication chart.
1. Start the engine, warm it up by
riding the motorcycle for several
minutes, and then stop the engine.
2. Place the motorcycle on the cen-
terstand.
3. Place an oil pan under the final
transmission case to collect the
used oil. Tightening torques:
Engine oil drain bolt A:
20 Nm (2.0 m·kgf)
Engine oil drain bolt B:
20 Nm (2.0 m·kgf)
Recommended engine oil:
See page 8-1.
Oil quantity:
Periodic oil change:
0.8 L
Total amount (dry engine):
0.9 L1. Oil filler cap
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PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU00732
Checking the brake fluid level Insufficient brake fluid may allow air to
enter the brake system, possibly caus-
ing it to become ineffective.
Before riding, check that the brake fluid
is above the minimum level mark and
replenish if necessary. A low brake flu-
id level may indicate worn brake pads
and/or brake system leakage. If the
brake level is low, be sure to check the
brake pads for wear and the brake sys-
tem for leakage.Observe these precautions:
When checking the fluid level,
make sure that the top of the mas-
ter cylinder is level by turning the
handlebars.
Use only the recommended quali-
ty brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking perfor-
mance.
NOTE:_ If DOT 4 is not available, DOT 3 can be
used. _
Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performance.
Be careful that water does not en-
ter the master cylinder when refill-
ing. Water will significantly lower
the boiling point of the fluid and
may result in vapor lock.
Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled fluid
immediately.
As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if the
brake fluid level goes down sud-
denly, have a Yamaha dealer
check the cause.
1. Minimum level mark
Recommended brake fluid: DOT 4
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