Oil Pump Assembly Removal and Installation: Removal

Remove oil pan, oil strainer and oil pan baffle plate, see OIL PAN AND OIL PUMP STRAINER REMOVAL AND INSTALLATION .
Remove oil pump sprocket cover (1).

Fig 1: Identifying Oil Pump Sprocket Cover
Courtesy of SUZUKI OF AMERICA CORP.
Slacken tension of oil pump chain according to the following procedure.
1. Raise latch (4) of oil pump chain adjuster (1) in direction of arrow to disengage latch from plunger teeth.
2. Push plunger (2) into oil pump chain adjuster (1) and install retainer (3) (3 mm wire) to hold plunger in place.
  
  Fig 2: Pushing Plunger Into Oil Pump Chain Adjuster
  Courtesy of SUZUKI OF AMERICA CORP.
Remove oil pump assembly according to the following procedure.
1. Remove oil pump bolts (4).
2. Remove oil pump chain (3) from oil pump sprocket (2).
3. Remove oil pump assembly (1) from lower crank case.
  
  Fig 3: Identifying Oil Pump Chain And Oil Pump Sprocket
  Courtesy of SUZUKI OF AMERICA CORP.