Honda CBR125RW - Owner's Manual > Fluids & Filters

Fuel

Fuel Recommendation

We recommend that you use unleaded fuel because it produces fewer engine deposits and extends the life of exhaust system components.

The use of leaded gas will damage the catalytic converter.

Your engine is designed to use any gasoline that has a pump octane number of 86 or higher. Gasoline pumps at service stations normally display the pump octane number. For information on the use of oxygenated fuels.

Use of lower octane gasoline can cause persistent "pinging" or "spark knock" (a loud rapping noise) which, if severe, can lead to engine damage. Light pinging experienced while operating under a heavy load, such as climbing a hill, is no cause for concern.

If pinging or spark knock occurs at a steady engine speed under normal load, change brands of gasoline. If pinging or spark knock persists, consult your Honda dealer.

Never use stale or contaminated gasoline or an oil/gasoline mixture. Avoid getting dirt, dust, or water in the fuel tank.

Fuel Capacity

Fuel tank capacity: 10,0 (2,64 US gal)

The tank should be refilled as soon as possible when the fuel indicator comes on.

Refueling Procedure

1. ignition key
2. fuel fill cap
3. filler neck

1. Insert the ignition key (1) in the fuel fill cap (2) and turn it clockwise.

2. Open the cap.

3. Add fuel until the level reaches the bottom of the filler neck (3). Avoid overfilling the tank. There should be no fuel in the filler neck.

WARNING

Gasoline is highly flammable and explosive. You can be burned or seriously injured when handling fuel.

• Stop the engine and keep heat, sparks and flame away.
• Handle fuel only outdoors.
• Wipe up spills immediately.

4. After refueling, align the latch in the cap with the slot in the filler neck. Push the cap into the filler neck until it snaps and locks.

5. Remove the ignition key from the cap.

Engine Oil

Engine oil quality is a major factor that affects both the performance and the service life of the engine.

Using the proper oil, and regularly checking, adding, and changing oil will help extend your engine's life.

Even the best oil wears out. Changing oil helps get rid of dirt and deposits in the engine. Operating the engine with old or dirty oil can damage your engine. Running the engine with insufficient oil can cause serious damage to the engine and transmission.

Change the engine oil as specified in the maintenance schedule.

When running in very dusty conditions, oil changes should be performed more frequently than specified in the maintenance schedule.

Oil Recommendation

* Suggested oils are equal in performance to SJ oils that are not labeled as energy conserving on the circular API service label.

• Your motorcycle does not need oil additives. Use the recommended oil.
• Do not use oils with graphite or molybdenum additives. They may adversely affect clutch operation.
• Do not use API SH or higher oils displaying a circular API "energy conserving" service label on the container. They may affect lubrication and clutch performance.

• Do not use non-detergent, vegetable, or castor based racing oils.

Other viscosities shown in the following chart may be used when the average temperature in your riding area is within the indicated range.

JASO T 903 standard

The JASO T 903 standard is an index for engine oils for 4-stroke motorcycle engines.

There are two classes: MA and MB.

Oil conforming to the standard is labeled on the oil container. For example, the following label shows the MA classification.

1. code number of the sales company of the oil
2. oil classification

Checking  & Adding Oil

RIGHT SIDE

1. oil filler cap/dipstick
2. upper level mark
3. lower level mark

1. Park your motorcycle on its side stand on a firm, level surface.

2. Start the engine and let it idle for 3 -5 minutes.

3. Stop the engine and wait 2 - 3 minutes.

4. Remove the oil filler cap/dipstick (1) and wipe it clean.

5. Hold the motorcycle in an upright position.

6. Insert the oil filler cap/dipstick until it seats, but don't screw it in.

7. Remove the oil filler cap/dipstick and check the oil level.

• If the oil is at or near the upper level mark (2) - you do not have to add oil.
• If the oil is below or near the lower level mark (3) - add the recommended oil until it reaches the upper level mark. (Do not overfill.)

8. Reinstall the oil filler cap/dipstick.

9. Check for oil leaks.

Changing  Engine Oil

This procedure requires mechanical skill and professional tools such as a torque wrench, as well as a means for disposing of the drained fluid. If you do not have the skills or the tools, see your Honda dealer.

Drain the Engine Oil:

1. Park the motorcycle on its side stand on a firm, level surface.

2. If the engine is cold, start it and let it idle for 3 - 5 minutes. Turn the engine off. Wait 2- 3 minutes for the oil to settle.

3. Place a drain pan under the engine oil drain bolt (1).

4. To drain the oil, remove the oil filler cap/dipstick, engine oil drain bolt, and sealing washer (2).

RIGHT FRONT, UNDER ENGINE

1. engine oil drain bolt
2. sealing washer

5. Pour the drained oil into a suitable container and dispose of it in an approved manner.

 Improper disposal of drained fluids is harmful to the environment.

6. Check the condition of the sealing washer on the engine oil drain bolt.

Replace the washer every other time the oil is changed.

Install the engine oil drain bolt and tighten it to the specified torque: 25 N-m (18 lbf-ft)

Add Engine Oil:

7. Fill the crankcase with the recommended oil, approximately: 1,0 (1,1 US qt)

8. Install the oil filler cap/dipstick securely.

9. Start the engine and let it idle for 3 -5 minutes.

10. Stop the engine and wait 2- 3 minutes.

11. Hold the motorcycle upright and check that the oil level is at the upper level mark on the oil filler cap/dipstick.

12. Check that there are no oil leaks.

If a torque wrench is not used for installation, see your Honda dealer as soon as possible to verify proper assembly.

Coolant

Your motorcycle's liquid cooling system dissipates engine heat through the coolant jacket that surrounds the cylinder and cylinder head.

Maintaining the coolant will allow the cooling system to work properly and prevent freezing, overheating, and corrosion.

Coolant Recommendation

Use Pro Honda HP coolant or an equivalent high quality ethylene glycol antifreeze containing corrosion protection inhibitors specifically recommended for use in aluminum engines. Check the antifreeze container label.

Use only distilled water as a part of the coolant solution. Water that is high in mineral content or salt may be harmful to the aluminum engine.

Using coolant with silicate inhibitors may cause premature wear of water pump seals or blockage of radiator passages.

Using tap water may cause engine damage.

The factory provides a 50/50 solution of antifreeze and water in this motorcycle.

This coolant solution is recommended for most operating temperatures and provides good corrosion protection.

Decreasing the concentration of antifreeze to less than 40% will not provide proper corrosion protection.

Increasing the concentration of antifreeze is not recommended because it decreases cooling system performance. Higher concentrations of antifreeze (up to 60%) should only be used to provide additional protection against freezing. Check the cooling system frequently during freezing weather.

Checking & Adding Coolant

LEFT SIDE

1. reserve tank
2. UPPER level mark
3. LOWER level mark

1. With the engine at normal operating temperature, check the coolant level in the reserve tank (1). It should be between the UPPER (2) and LOWER (3) level marks.

If the reserve tank is empty, or if coolant loss is excessive, check for leaks and see your Honda dealer for repair.

2. Remove the front seat.

UNDER FRONT SEAT

4. reserve tank cap

3. Remove the reserve tank cap (4).

Always add coolant to the reserve tank.

Do not attempt to add coolant by removing the radiator cap.

4. Add coolant to the reserve tank as required to bring the coolant level to the UPPER level mark.

Coolant Replacement

Coolant should be replaced by your Honda dealer, unless you have the proper tools and service data and are mechanically qualified. Refer to the official Honda Service Manual.

WARNING

Removing the radiator cap while the engine is hot can cause the coolant to Spray out, seriously scalding you.

Always let the engine and radiator cool down before removing the radiator cap.

To properly dispose of drained coolant, refer to You & the Environment.

Improper disposal of drained fluids is harmful to the environment.

Crankcase Breather

Service the crankcase breather more frequently if your motorcycle is ridden in the rain or often at full throttle. Service the breather if you can see deposits in the transparent section of the drain tube.

Draining

RIGHT SIDE

1. crankcase breather tube plug

1. Place a drain pan under the crankcase breather tube plug (1).

2. Remove the plug to drain the deposits in the tube.

3. Reinstall the crankcase breather tube plug.

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