Fault Diagnosis
| Symptom | Cause | Remedy | 
|---|---|---|
| Erratic running Stalling at idling Lack of power High fuel consumption | Sticking piston Dirty piston and suction chamber Jet out of centre Bent needle | Clean Re-centre Fit new | 
| Too rich at idling Fuel leak | Jet gland leakage Faulty top gland Dirt under top gland washer Faulty bottom gland | Clean Fit new | 
| Float chamber or jet flooding | Incorrect fuel level Dirty or worn float chamber Needle valve Punctured float | Check and reset level Clean or renew valve Fit new | 
 
     
           
           
           
