Makita RBL250 Original Instruction Manual

Also see for RBL250: Instruction manual Installation manual Original instruction manual Original instruction manual

Contents

15Maintenance scheduleGeneral Engine assembly,screws and nutsVisual inspection for damage and tightnessCheck for general condition and securityAfter each refuelling Throttle leverIO switchFunctional checkFunctional checkDaily Sponge element (air filter)Cooling air ductIdling speedTo be cleanedTo be cleanedInspectionWeekly Spark plugMufflerInspection, replace if necessaryCheck and it necessary clean the openingQuarterly Suction head (gas ling filter)Fuel tankTo be replacedTo be cleanedStoring Fuel tankCarburetorEmpty fuel tankOperate until engine runs out of fuelStorageWhen keeping the machine in storage for a long time, drain fuel from the fuel tank and carburetor, as follows: Drain all fuel from the fuel tank. Givea gentle push on the primer pump repeatedly until all fuel is expelled out of the primer pump. Dispose of properly and in accordance with all locallaws.Remove the spark plugs and add a few drops of oil into spark plug hole. Then, pull the starter gently. Confirm that oil film covers the engine insideand tighten the spark plugs.Clear dirt or dust from outside of engine, wipe them with an oil-immersed cloth and keep the machine locked in a dry, well ventilated location.Do not store in a closed area where fuel vapors can reach an open flame from hot water heaters, furnaces etc.––––Troubleshooting proceduresProblem System Observation Possible causesEngine not starting orstarts with difficultyIgnition system Ignition spark is present Faulty fuel supply or compression system, mechanical defectNo ignition spark STOP switch operated, wiring fault or short circuit, spark plug or con-nector defective, ignition module faultyFuel supply Fuel tank filled Incorrect choke position, carburetor defective, suction head (gas linefilter) dirty, fuel supply line bent or interruptedCompression No compression whenpulled overCylinder bottom gasket defective, crankshaft seals damaged, cylinder orpiston rings defective or improper sealing of spark plugMechanical fault Starter not engaging Broken starter spring, broken parts inside of the engineWarm start problems Tank filled Choke in incorrect positionIgnition spark existing Carburetor contaminated, have it cleanedEngine starts but diesimmediatelyFuel supply Tank filled Incorrect idling adjustment, carburetor contaminatedFuel tank cap defective, fuel supply line interrupted, cable or STOPswitch faultyInsufficient performance Several systemsmay simultane-ously be affectedEngine idling Air filter contaminated, carburetor contaminated, muffler clogged, ex-haust duct in the cylinder clogged