Assessments - 4, GPA: 4.5
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(2) Pull the cover lower side and detach the air cleaner cover. (3) Turn the choke lever to the full close side, and keep the carburetor off from dust or dirt. (4) If oil adheres to the element (sponge), squeeze it firmly. (5) For heavy contamination: 1) Remove the element (sponge), immerse it in warm water or in water-diluted neutral detergent, and dry it completely. 2) Clean the element (felt) with gasoline, and dry it completely. (6) Before attaching the element, be sure to dry it completely. Insufficient drying of the element may lead to difficult startup. (7) Wipe out with waste cloth, oil adhering around the air cleaner cover and plate breather. (8) Immediately after cleaning is finished, attach the air cleaner cover and tighten it with fixing bolts. (In remounting, first place the upper claw, and then the lower claw.) Air cleaner cover Element (felt) Element (sponge) Fixing bolt Breather Part Plate Pick this part and remove the element (felt). DANGER • • Clean the element several times a day, if excessive dust adheres to it. If operation continues with the element remaining not cleared of oil, oil in the air cleaner may fall outside, resulting in oil contamination. 3. Checking the spark plug (1) Opening/closing the plug cover When opening the cover, apply fingers to the main handle and plug cover projection as shown in the figure right. Push up the projection and slide the cover in the “OPEN” direction. When closing the cover, slide the cover in the “CLOSE” direction till the click under the plug cover projection rides over the engine cover. Finally, push in the projection. (2) Removing the spark plug Use an attached box wrench to remove or install the spark plug. (3) Checking the spark plug The clearance between two electrodes of spark plug (see the figure left) is 0.7 to 0.8 mm. Adjust to the correct clearance when it is too wide or too narrow. Clean thoroughly or replace the spark plug if it has accumulated carbon or contaminated. (4) Replacing the spark plug For replacement, use NGK-CMR6A. (3) (1) (2) Lateral electrode (-) Electrode clearance 0.7 -0.8 mm (0.028-0.031 in) 15 4. Cleaning the fuel filter • Clogged oil filter may cause difficulty of startup or failure of engine speed increase. • Check the fuel filter regularly as follows: (1) Remove the fuel tank cap, drain the fuel to empty the tank. Check the tank inside for any foreign materials. If any, wipe clean such materials. (2) Pull out the fuel filter with wire through the oil filling port. (3) If the fuel filter surface is contaminated, clean it with gasoline. Foul gasoline must be disposed of according to the method specified by each local authority. Excessively foul filter must be replaced. (4) Reset the fuel filter in the fuel tank and tighten firmly the fuel tank cap. For replacement, contact your dealership or an authorized service agent. Fuel tank cap Fuel filter Hose clamp 5. Inspection of bolts, nuts and screws • Retighten loose bolts, nuts, etc. • Check for fuel and oil leakage. • Replace damaged parts with new ones for safety operation. 6. Cleaning of parts • Keep the engine always clean. • Keep the cylinder fins free of dust or dirt. Dust or dirt adhering to the fins will cause seizure. 7. Replacement of gaskets and packings In reassembling after the engine is dismounted, be sure to replace the gaskets and packings with new ones. Any maintenance of adjustment work that is not included and described in this manual is only to be performed by Authorized Service Agents. STORAGE WARNING • When draining the fuel, be sure to stop the engine and confirm that the engine cools down. - Just after stopping the engine, it may still hot with possibility of burns, inflammability and fire. DANGER • When the machine is kept out of operation for a long time, drain up all fuel from the fuel tank and carburetor, and keep it at a dry and clean place. Drain up fuel from the fuel tank and carburetor according to the following procedure: (1) Remove the fuel tank cap, and drain fuel completely. If there is any foreign matter remaining in the fuel tank, remove it completely. (2) Pull out the fuel filter from the refill port using a wire. (3) Push the primer pump until fuel is drained from there, and drain fuel coming into the fuel tank. (4) Reset the filter to the fuel tank, and securely tighten the fuel tank cap. (5) Then, continue to operate the engine until it stops. (6) Remove the spark plug, and drip several drops of engine oil through the spark plug hole. (7) Gently pull the starter handle so that engine oil will spread over the engine, and attach the spark plug. (8) During storage, in order for the machine to become uprighting, please keep. (9) Keep the drained fuel in a special container in a well-ventilated shade. 16 Fault location Fault System Observation Cause Engine not starting or with difficulty Warm start problems Engine starts but dies Insufficient performance Ignition system Fuel supply Compression Mechanical fault Fuel supply Several s...
Este manual também é adequado para os modelos :Sistemas de ventilação - BHX2500 (2.6 mb)