Technical Support

Rotax engines with Nippon Denso
CDI Ignition

Page 1 INTRODUCTION
Page 2 TROUBLE SHOOTING
Page 3 PROCEDURES FOR CHECKING SYSTEM
Page 4 CAUSES AND SYMPTOMS OF TROUBLE
Page 5 PARTS INSPECTION PROCEDURES




1. Does fuel reach carburetor?

NO

YES

 

  
2. Does Fuel reach combustion chamber?

NO

YES

 

 

3. Does fuel exit overflow tubes?

YES

NO

 

 

4. Does engine flood?

YES

NO

 

 

5. Is spark present at spark plug cap?

NO

YES

   
6. Is spark present at spark plug?

NO

YES

   
7. Is engine difficult to start?

YES

NO

   
8. Does engine backfire or kick back?

YES

NO

   
9. Does engine run on one cylinder despite good spark in both plugs?

YES

NO

   
10. Does engine crank without resistance?

YES

NO

   
11. Engine will not rotate - lower end frozen?

YES

NO

   
12. Does engine start but will not idle or misses just above idle?

YES

NO

   
13. Does engine die when throttle is open?

YES

NO

   
14. Is engine slow to accelerate or does not reach full throttle?

YES

NO

   
15. Does engine run rough, smoke, or vibrate excessively?

YES

NO

   
16. Does engine run poorly at higher throttle settings?

YES

NO

   
17. Does engine overheat?

YES

NO

   
18. Engine RPM surges or won't hold steady?

YES

NO

   
19. Does engine lose power after standard warm up or will not reach full throttle?

YES

NO

   
20. Does engine show high CHT temps?

YES

NO

   
21. Does engine show excessive EGT temps?

YES




If you have any information you would like to see added here,

please send us an email Support@aircommander.com

 



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