Makita BHX2500 instruction manual Adjustment of Idling, Stopping, Checkup of low-speed rotation

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NOTE

•The engine may be damaged if the choke lever is moved further beyond the “CLOSE” position.

•If the engine stops with an explosion sound or if the engine started, but stopped before operation of the choke lever, return this lever to the “OPEN” position and pull the starter handle several times to start the engine again.

•If the operator keeps pulling the starter handle several times with the choke lever left in the “CLOSE” position, the engine may be difficult to start because of over-suction of the fuel.

•In case of over-suction of the fuel, remove the spark plug and pull the handle several times rapidly to discharge any excess fuel. Dry the spark plug electrode.

•When the throttle valve does not return to a position in contact with the idling adjusting screw even if the throttle lever is set to the low speed, correct the control cable catching state to ensure proper return of the valve.

2)When the engine is warm

(1)Place the engine on a flat ground.

(2)Press the primary pump several times.

(3)Confirm that the choke lever is open.

(4)Hold the main handle with a left hand to prevent the engine from moving, settle down to take the stable position.

(5)Pull out slowly the starter handle till a certain resistance is felt. Return the starter handle backward once from this position, then pull it out with force.

(6)When the engine is difficult to start, open the throttle valve by about 1/3.

2. Stopping

1) When the cruise control lever is OFF

Release the trigger lever to reduce the engine speed, and set the stop switch to the “O” position.

2) When the cruise control lever is ON

Set the cruise control lever to the OFF position, reduce the engine speed, and set the stop switch to the “O” position.

Cruise control lever

OFF

ON

 

 

ADJUSTMENT OF IDLING

DANGER

The carburetor is the adjustment being completed at the time of factory shipment. Please do not adjust other than idling adjusting. When adjustment becomes necessary, please consult your dealership or an authorized service agent.

Checkup of low-speed rotation

Set the low-speed rotation to 3500 ( /min).

•If it is necessary to change the rotation speed, regulate the adjusting screw, 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.

Adjusting screw

Carburetor

12

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Contents BHX2500 Table of Contents EnglishSafety Instructions 15metersResting Transport Refuelling Maintenance Tool Replacement MetersMethod of operation Specification NGK CMR6ADesignation of Parts Assembly Instructions Always wear protective glovesPoint 1 in Replacement of Oil Oil Gauge Point 2 in Replacement of Oil If oil spills outBefore Start of Operation Inspection and Refill of Engine OilStorage of machine and refill tank Points for FuelWhen the engine is cold, or when the fuel it refueled OperationStarting Adjustment of Idling StoppingCheckup of low-speed rotation Operation Method Blower operationDust Collection Operation Inspection and Maintenance Replacement of engine oilPoints in replacement of engine oil Cleaning of air cleaner Checking the spark plugCleaning the fuel filter Cleaning of partsReplacement of gaskets and packings StorageFault location Troubleshooting State of abnormality Probable cause malfunction RemedyEmission Compliance Period Manufacturers Warranty Coverage Owners Warranty ResponsibilitiesWhat is Covered What is not CoveredHOW to File a Claim Waranty Commencement DateWhere to GET Warranty Service Parts Covered Under the California Emission WarrantyMaintenance Statements Repair and Replacement of EMISSION-RELATED Parts Emission Component Defect Warranty Period Parts CoveredObtaining Warranty Service HOW to Make a Claim Memo Makita Corporation
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