MAINTENANCE PROCEDURE 4.9 MAINTENANCE PROCEDURE 4.9.1 WHEN REQUIRED 4.9.1.a CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT If inspection, cleaning, or maintenance is carried out with the engine running, dirt will get into the engine and damage it. Always stop the engine before carrying out these operations. When using compressed air, there is danger that dirt may be blown around and cause serious injury. Always use safety glasses, dust mask, and other protective equipment. Checking 1. Open the engine rear cover. For details, see section "3.2.9 ENGINE REAR COVER". 2. If the dust indicator (1) shows red, clean the air cleaner el- ement.
IMPORTANT Do not clean the air cleaner element before the red pis- ton in dust indicator (1) appears. If the air cleaner element is cleaned frequently before the red piston in the dust indicator appears, the air cleaner cannot provide the proper performance and the cleaning efficiency is lowered. Cleaning or replacing element 1. Open the engine rear cover. For details, see Section "3.2.9 ENGINE REAR COVER". 2. Remove clips (2), then remove dust cup (3). 3. Take out element (4) and cover the air connector at the end of the air cleaner body with a clean cloth or tape. 4. Clean the inside of the air cleaner body, dust cap (3), and vacuator valve (5). 175 WARNING