INSPECTION AND MAINTENANCE1. Replacement of engine oilDeteriorated engine oil will shorten the life of the sliding and rotating parts to a great extent. Be sure to check the period and quantity ofreplacement.Interval of replacement: Initially, every 20 operating hours, and subsequently every 50 operating hoursRecommended oil: SAE10W-30 oil of API Classification SF Class or higher (4-stroke engine oil for automobile)In replacement, perform the following procedure.(1) Confirm that the tank cap is tightened securely.(2) Detach the oil cap.- Keep the oil gauge free from dust or dirt.(3) The machine it can tilt to the blower port side, drain oil.- Drain oil in a container.(4) Please make the machine vertical (under the protector), refill oilto the shelf inside the oil pipe.(5) After refill, securely tighten the oil gauge. Insufficient tightening ofthe oil gauge will lead to oil leakage.DANGER• Before inspection and maintenance, stop the engine and allow it to cool. Remove also the spark plug and plug cap.- If inspection or maintenance is attempted immediately after engine stop or with the plug cap left attached, the operator may suffer burnor an accident due to careless startup.• After inspection and maintenance, be sure to confirm that all parts are assembled. Then, proceed to operation.DANGER• In general, the engine main unit and engine oil still remain hot just after the engine is stopped. In replacement of oil, confirm that theengine main unit and engine oil are sufficiently cooled down. Otherwise, there may remain a risk of scald. In addition just after of theengine stopping because oil does not finish to return in the oil case, becomes cause of the oil inserting too much.• If the oil filled above the limit, it may be contaminated or may catch fire with white smoke.• Never discard replaced engine oil in garbage, earth or sewage ditch. Disposal of oil is regulated by law. In disposal, always follow therelevant laws and regulations. For any points remaining unknown, contact Authorized Service Agent.• Oil will deteriorate even when it is kept unused. Perform inspection and replacement at regular intervals (replace with new oil every 6months).Points in replacement of engine oil(4)Shelf(3)14