Back-up Ring Installation Note

1. Install the back-up ring, making sure it is installed in the right direction.
   Fig 1: Installing Back-Up Ring To Fuel Injector

   Courtesy of MAZDA MOTORS CORP.
2. After installing the back-up ring, verify that it is installed correctly.

Fig 2: Checking Back-Up Ring Installation Condition

Courtesy of MAZDA MOTORS CORP.