16B: Startup after warm-up operation1) Push the primer pump repeatedly.2) Keep the throttle lever at the idling position.3) Pull the recoil starter strongly.4) If it is difficult to start the engine, open the throttle by about 1/3.Pay attention to the cutter blade which may rotate.Attention in OperationWhen the engine is operated upside down, white smoke may come out from the muffler.STOPPING1) Release the throttle lever (6) fully, and when the engine rpm has lowered,set the I-O switch to STOP the engine will now stop.2) Be aware that the cutting head may not stop immediately and allow it toslow down fully.CHECKUP OF LOW-SPEED ROTATIONSet the low-speed rotation to 3,000 min– -1 .If it is necessary to change the rotation speed, regulate the adjusting screw(illustrated on the left), with Phillips screwdriver.Turn the adjusting screw to the right, and the engine rotation will increase.–Turn the adjusting screw to the left, and the engine rotation will drop.The carburetor is generally adjusted before shipment. If it is necessary to–readjust it, please contact Authorized Service Agent.ADJUSTMENT OF LOW-SPEED ROTATION (IDLING)When it is necessary to adjust the low-speed rotation (idling), perform it by the carburetor adjusting screw.STOPI-O switch (1)Throttle lever (6)Adjusting screwCarburetorCAUTION: The cutting tools mentioned below must only be resharpened by anauthorized facility. Manual resharpening will result in imbalances ofthe cutting tool causing vibrations and damage to the equipment.Cutter blade (star blade (4 teeth), eddy blade (8 teeth))–An expert resharpening and balancing service is provided by AuthorizedService Agents.NOTE: To increase the service life of the cutter blade (star blade, eddy blade) itmay be turned over once, until both cutting edges have become blunt.RESHARPENING THE CUTTING TOOL