See also:

Engine oil
For the checking, adding and replacing procedure or other details, refer to “Engine oil”. NOTE The procedure for changing the engine oil and oil filter should be performed by a properly-trained ...

Air cleaner element
Do not operate the engine with the air cleaner element removed. The air cleaner element not only filters intake air but also stops flames if the engine backfires. If the air cleaner elem ...

ON
This is the normal operating position after the engine is started. ...