Yamaha XMAX YP125R - Service manual > Changing the coolant
1. Remove:
- Bottom cover
2. Remove:
- Coolant reservoir cap "1"
3. Disconnect:
- Coolant reservoir hose "2"
4. Drain:
- Coolant (from the coolant reservoir)
5. Remove:
- Radiator cap "1"
WARNING
A hot radiator is under pressure. Therefore, do not remove the radiator cap when the engine is hot. Scalding hot fluid and steam may be blown out, which could cause serious injury.
When the engine has cooled, open the radiator cap as follows: Place a thick rag or a towel over the radiator cap and slowly turn the radiator cap counterclockwise to allow any residual pressure to escape. When the hissing sound has stopped, remove the cap.
1. Remove:
- Bottom cover
2. Remove:
- Coolant reservoir cap "1"
3. Disconnect:
- Coolant reservoir hose "2"
4. Drain:
- Coolant (from the coolant reservoir)
5. Remove:
- Radiator cap "1"
WARNING
A hot radiator is under pressure. Therefore, do not remove the radiator cap when the engine is hot. Scalding hot fluid and steam may be blown out, which could cause serious injury.
When the engine has cooled, open the radiator cap as follows: Place a thick rag or a towel over the radiator cap and slowly turn the radiator cap counterclockwise to allow any residual pressure to escape. When the hissing sound has stopped, remove the cap.
6. Remove:
- Coolant drain bolt (from the cylinder) "1" (along with the copper washer)
7. Drain:
- Coolant (from the engine and radiator)
8. Install:
Coolant drain bolt (to the cylinder) (along with the copper washer )
Coolant drain bolt 7 Nm (0.7 m*kgf, 5.1 ft*lbf)
9. Connect:
- Coolant reservoir hose
10.Fill:
- Cooling system (with the specified amount of the recommended coolant)
Recommended antifreeze
High-quality ethylene glycol antifreeze containing corrosion inhibitors for aluminum engines Mixing ratio 1:1 (antifreeze:water)
Radiator capacity (including all routes) 1.00 L (1.06 US qt, 0.88 Imp.qt)
Coolant reservoir capacity (up to the maximum level mark) 0.25 L (0.26 US qt, 0.22 Imp.qt)
TIP
The specified amount of coolant is a standard amount. Fill the cooling system with coolant until coolant comes out of the air bleed bolt hole "1".
Handling notes for coolant
Coolant is potentially harmful and should be handled with special care.
WARNING
- If coolant splashes in your eyes, thoroughly wash them with water and consult a doctor.
- If coolant splashes on your clothes, quickly wash it away with water and then with soap and water.
- If coolant is swallowed, induce vomiting and get immediate medical attention.
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.
- If coolant comes into contact with painted surfaces, immediately wash them with water.
- Do not mix different types of antifreeze.
11.Install:
- Radiator cap
12.Fill:
- Coolant reservoir (with the recommended coolant to the maximum level mark "a")
13.Install:
- Coolant reservoir cap
14.Start the engine, warm it up for several minutes, and then turn it off.
15.Check:
- Coolant level
TIP
Before checking the coolant level, wait a few minutes until the coolant has settled.
16.Install:
- Bottom cover
See also:
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.