Turn off all electrical consumers (radio, lighting). With the engine idling, apply the parking brake.
Measure the engine idling speed, which should be:
- (825±25) min-1 for RF engine;
- (725+25) min-1 for RF-N engine.
Pic. 4.24. Location of locknut and idle speed adjustment screw RF-N
If the idle speed of the engine does not match the required, loosen the lock nut and, by turning the adjusting screw, adjust the speed (pic. 4.24). Tighten locknut after adjustment.
Attention! If the engine idle speed cannot be adjusted, contact a Mazda or Bosch service station.