5.10 Troubleshooting
05-225
5.10.3 Trouble analyzing
Before trouble diagnosis by engine problems, initial checking should be done as follows.
1. Confirm if trouble light is valid;
2. Confirm there’s no trouble code record by PDA checking.
3. Confirm trouble existing complained by end-user. Then check the following points.
(1)Check fuel hoses for any fuel leakage;
(2)Check vacuum pipes for any broken, twisted or improper connection;
(3)Check intake manifold for blockage, air leakage or damaged;
(4)Check high-tension cable for any damaged, aging;or ignition order is correct.
(5) Check wiring grounds are clean and firm;
(6) Check connector of all sensors and actuators for any loose or improper connection.
Important note: In case there’re some problems as mentioned, repair work should be
done first, then go to next diagnosis.
Diagnosis tips:
1. Confirm engine has no previous trouble record;
2. Confirm there’s really trouble existing;
3. During checking, do not neglect vehicle periodic maintenance, cylinder pressure,
valve, fuel supply, etc.
4. Replace ECU to test.
In case trouble disappears, then it is a problem of the ECU. If trouble still exists, then
original ECU and check other points.
Common troubles list:
● When starting engine, engine cannot rotate or rotate slowly.
● When starting engine, starter motor can rotate but cannot start engine.
● Difficult to start warm or hot engine
● Difficult to start cold engine
● RPM is ok, but difficult to start engine.
● Starting is ok, but idle speed is unstable at any time.
● Starting is ok, but idle speed is unstable during engine warm-up period.
● Starting is ok, but idle speed is unstable after engine warm-up.
● Starting is ok, idle speed is unstable or engine stops when switching on lights or other
electrical components.
● Starting is ok, but too high idle speed.
● RPM cannot go up or engine stop when accelerating.
● Slow acceleration.
● Insufficient power and bad performance when accelerating.
Summary of Contents for CF1000ATR 2018
Page 1: ...CFMOTO SERVICE MANUAL CF1000AU CF1000ATR CFORCE 1000 ...
Page 81: ...CFMOTO 05 6 5 1 4 EIN Location EIN Location Engine left side Engine right side 050601 050602 ...
Page 351: ...06 Vehicle chassis 06 41 6 7 3 Front and rear CV shaft disassemble view 064101 064102 ...
Page 363: ...Appendix A ...
Page 364: ...Appendix B ...
Page 365: ...Appendix C ...
