Radiator (Cooling System) - Suzuki RM-z450 Owner's Service Manual

3-8 TROUBLESHOOTING

RADIATOR (COOLING SYSTEM)

Complaint
Engine overheats
Engine overcools
Symptom and possible causes
• Not enough engine coolant
• Radiator core clogged with dirt or scale
• Clogged water passage
• Air trapped in the cooling circuit
• Defective water pump
• Use incorrect coolant
• Defective ECM
• Defective ECT sensor
• Extremely cold weather
Remedy
Add coolant
Clean
Clean
Bleed air
Replace
Replace
Replace
Replace
Put on the radiator cover