5.10 Troubleshooting
05-229
Item
Procedures
Results
Next
2
Connect fuel pressure gauge, and turn on ignition
switch or start engine. Check if fuel pressure is
approximately 300kPa.
YES Next step
NO
Repair fuel
Supply system
3
Disconnect high-tension cable, connect spark tester
and set its electrode to 5mm, then start engine to
check if blue and white spark appears
YES Next step
NO
Repair ignition
System
4 Check if spark plug is in good condition (including
its type and clearance)
YES Next step
NO
Adjust or replace
5 Disconnect water temp. sensor connector and
start engine to check if engine can start.
YES Repair circuit or
replace sensor
NO
Next step
6 Slightly draw throttle cable and check if engine can
start easily
YES Clean throttle body
and bypass
NO
Next step
7 Disassemble injector and use special tool to check
if there is leakage or blocked.
YES Replace injector
NO
Next step
8
Check whether the failure happens right after filling
fuel
YES Change fuel
NO
Next step
9
Check if cylinder pressure is sufficient
YES
Eliminate
mechanical
failures
NO
Next step
10 Check if ignition timing
YES Next step
NO
Adjust ignition timing
11
Connect PDA and switch on ignition to check ECU-
G1,F1,P4, and O4 pin if it is powered normally;
Check ECU-Q2,H3 and C3 pin if it is connected to
ground normally.
YES Use PDA to check
NO
Repair related
circuit
Item
Procedures
Results
Next
1
Check if air filter is blocked or air intake pipe leaks
YES Repair air intake
system
NO
Next step
(6) Normal starting,but unstable idle speed
General failure part: 1. Water in fuel tank 2. Injector 3. Spark plug 4. Throttle body
and by-pass 5. Air intake pipe 6. Air control valve 7. Ignition timing 8. Spark plug 9.
Mechanical part of engine
General diagnostic procedures:
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 ...
