9D. Engine PrecautionsPrior to attempting to operate the engine, read the informationcontained in the engine owner's manual. An engine owner’s manual issupplied with every gasoline powered concrete saw.1. Check Oil: Add oil if low. Refer to the engine owner's manual for therecommended SAE viscosity grades. Capacity of oil is 1.16 US quarts (1.1liters)2. Check Fuel: Fill if low. Use only unleaded gasoline with a pump stickeroctane rating of 86 or higher is recommended. Never use an oil andgasoline mixture!3. Air Cleaner: Never run the engine without the air cleaner! Rapid enginewear will result from contaminants being drawn through the carburetor andinto the engine.4. Engine Starting: Refer to the engine owner's manual additional properengine starting procedure.E. Pointer Alignment1. Use a straight edge, and carefully mark a line 12 feet long on a smooth levelsurface.2. Place the saw blade on the marked line, move the saw to the center of themarked line and then lower the blade until it is about 1/16” above themarked line3. Measure from each end of the saw frame to insure that the frame is parallelto the marked line. Adjust the saw as needed.4. With the blade centered on the marked line and the saw frame parallel tothe marked line, lower the front pointer.5. Adjust the pointer by bending it until is aligned with the marked line.II. OPERATIONA. Blade Installation1. Disconnect the spark plug.2. Remove the blade shaft nut, (Turn clockwise), and remove the outsidecollar.