Fuel Cut Operation Inspection

NOTE: Before inspection, check to make sure that gear shift lever is in Neutral position (with A/T model, selector lever in "P" range) and that parking brake lever is pulled all the way up.

Warm up engine to normal operating temperature.
While listening to sound of injector by using sound scope (1) or such, increase engine speed to higher than 3,000 rpm.
Check to make sure that operation sound of injector stops in the following conditions:
- When throttle valve is closed instantly.
- When engine speed is reduced to 2,000 rpm or below.
  
  Fig 1: Identifying Sound Scope
  Courtesy of SUZUKI OF AMERICA CORP.