Yamaha XMAX YP125R - Service manual > Changing the final transmission oil

1. Stand the vehicle on a level surface.

TIP

• Place the vehicle on the centerstand.
• Make sure that the vehicle is upright.

2. Start the engine, warm it up for several minutes, and then turn it off.

3. Place a container under the final transmission.

4. Remove:

• Oil filler cap "1"
• O-ring "2"

5. Remove:

• Final transmission oil drain bolt "1" Completely drain the final transmission oil.

6. Install:

• Final transmission oil drain bolt (along with the gasket )

Final transmission oil drain bolt 20 Nm (2.0 m*kgf, 14 ft*lbf)

7. Fill:

• Final transmission oil (specified amount of the recommended final transmission oil)

Final transmission oil

Type SAE 10W-30 type SE motor oil

Quantity 0.21 L (0.22 US qt, 0.18 Imp.qt)

Quantity (disassembled) 0.23 L (0.24 US qt, 0.20 Imp.qt)

8. Install:

• O-ring
• Oil filler cap

9. Start the engine, warm it up for several minutes, turn it off, and then check for oil leakage.

Replacing the air filter element

TIP

Check hoses are located on the bottom of the air filter case. If dust or water or both collects in a hose, remove the clamp from the hose, and then remove the plug to drain the hose.

1. Remove:

• Air filter case cover "1"
• Air filter element

2. Check:

• Air filter element

Damage → Replace.

TIP

• Replace the air filter element every 12000 km of operation.
• The air filter needs more frequent service if you are riding in unusually wet or dusty areas.

3. Install:

• Air filter element
• Air filter case cover

NOTICE

Never operate the engine without the air filter element installed. Unfiltered air will cause rapid wear of engine parts and may damage the engine. Operating the engine without the air filter element will also affect the throttle body tuning, leading to poor engine performance and possible overheating.

TIP

When installing the air filter element into the air filter case cover, make sure that the sealing surfaces are aligned to prevent any air leaks.

Cleaning the v-belt case air filter element

1. Remove:

• V-belt case cover "1"
• V-belt case air duct "2"
• V-belt case air filter element

2. Clean:

• V-belt case air filter element (with solvent)

WARNING

Never use low flash point solvents, such as gasoline, to clean the V-belt case air filter element.

Such solvents may cause a fire or an explosion.

TIP

After cleaning, gently squeeze the V-belt case air filter element to remove the excess solvent.

NOTICE

Do not twist the V-belt case air filter element when squeezing it.

3. Check:

• V-belt case air filter element

Damage → Replace.

4. Apply the recommended oil to the entire surface of the V-belt case air filter element and squeeze out the excess oil. The V-belt case air filter element should be wet but not dripping.

Recommended oil Engine oil

5. Install:

• V-belt case air filter element
• V-belt case air duct
• V-belt case cover

V-belt case air duct bolt 7 Nm (0.7 m*kgf, 5.1 ft*lbf)

V-belt case cover bolt 7 Nm (0.7 m*kgf, 5.1 ft*lbf)

Checking the throttle body joint

1. Remove:

• Storage box

2. Check:

• Throttle body joint "1"

Cracks/damage → Replace.

3. Install:

• Storage box

Checking the fuel hose

1. Remove:

• Storage box

2. Check:

• Fuel hose "1"

Cracks/damage → Replace the fuel injector assembly.

Loose connection → Connect properly.

3. Install:

• Storage box

Checking the breather hoses

1. Remove:

• Storage box

2. Check:

• Cylinder head breather hose "1"
• Transmission case breather hose "2"

Cracks/damage → Replace.

Loose connection → Connect properly.

NOTICE

Make sure the cylinder head breather hose and transmission case breather hose are routed correctly.

3. Install:

• Storage box

Checking the exhaust system

1. Check:

• Exhaust pipe "1"
• Muffler "2"

Cracks/damage → Replace.

• Exhaust system connection

Exhaust gas leaks → Replace the gaskets "3".

2. Check:

• Tightening torque

Exhaust pipe nut 20 Nm (2.0 m*kgf, 14 ft*lbf)

Muffler joint bolt 14 Nm (1.4 m*kgf, 10 ft*lbf)

Muffler mounting bolt 53 Nm (5.3 m*kgf, 38 ft*lbf)

O2 sensor 45 Nm (4.5 m*kgf, 32 ft*lbf)

Checking the coolant level

1. Stand the vehicle on a level surface.

TIP

• Place the vehicle on the centerstand.
• Make sure the vehicle is upright.

2. Check:

• Coolant level

The coolant level should be between the maximum level mark "a" and minimum level mark "b".

Below the minimum level mark → Add the recommended coolant to the proper level.

NOTICE

• Adding water instead of coolant lowers the antifreeze content of the coolant. If water is used instead of coolant, check, and if necessary, correct the antifreeze concentration of the coolant.
• Use only distilled water. However, if distilled water is not available, soft water may be used.

3. Start the engine, warm it up for several minutes, and then turn it off.

4. Check:

• Coolant level

TIP

Before checking the coolant level, wait a few minutes until it settles.

Checking the cooling system

1. Remove:

• Storage box
• Bottom cover
• Footrest board

2. Check:

• Radiator "1"
• Radiator inlet hose "2"
• Radiator outlet hose "3"
• Radiator filler hose "4"
• Coolant reservoir hose "5"
• Thermostat cover "6"
• Thermostat inlet hose "7"

Cracks/damage → Replace.

3. Install:

• Footrest board
• Bottom cover
• Storage box

See also: