Cooling System/Radiator; Ignition System - KEEWAY 500ATV Service Manual

3. Cooling System/Radiator

Symptom and Possible Causes
Complaint
Engine overheats
Engine coolant
overcools

4. Ignition System

Complaint
No Sparking or
Weak Sparking
1. Clogged water passage or radiator
2. Air in the cooling system; insufficient
coolant
3. Faulty water pump
4. Incorrect coolant
5. Faulty thermostat
6. Faulty fan motor or thermoswitch
1. Faulty thermoswitch
2. Extremely cold weather
3. Faulty thermostat
Symptom and Possible Causes
1. Faulty CDI
2. Faulty spark plug
3. Faulty Generator
4. Insufficient battery voltage
5. Faulty ignition coil
6. Faulty pickup coil
14-6
14. Troubleshooting
Remedy
Clean
Discharge air and add coolant
Check and replace
Replace
Replace
Check and/or replace
Replace
Put on radiator cover
Replace
Remedy
Check and replace
Check and replace
Check and replace
Check and replace
Check and replace
Check and replace