Air Pump
- Check air pump for abnormal noise. Check discharge pressure by connecting Air Pump Tester (09258-14010) to hose at the pump outlet. Select and use a specified orifice .217" (5.5 mm) on the tester.
- Start engine and set engine speed at 1200 RPM. Tester gauge should read in Green zone. If tester indicates in Red zone, replace pump assembly. Remove tester and reconnect hose.