Makita BHX2500CA Instruction Manual download pdf (Page 17)

Fault location

Fault System Observation Cause

Engine not starting or with

difficulty

Ignition system Ignition spark O.K. Fault in fuel supply or compression system, mechanical

defect

No ignition spark STOP-switch operated, wiring fault or short circuit, spark

plug or connector defective, ignition module faulty

Fuel supply Fuel tank filled Incorrect choke position, carburetor defective, fuel supply

line bent or blocked, fuel dirty.

Compression No compression when

pulled over

Cylinder bottom gasket defective, crankshaft seals

damaged, cylinder or piston rings defective or improper

sealing of spark plug

Mechanical fault Starter not engaging Broken starter spring, broken parts inside of the engine

Warm start problems Tank filled ignition spark

existing

Carburetor contaminated, have it cleaned

Engine starts but dies Fuel supply Tank filled Incorrect idling adjustment, carburetor contaminated

Fuel tank vent defective, fuel supply line interrupted,

cable or STOP-switch faulty

Insufficient performance Several systems

may simultaneously

be affected

Engine idling poor Air filter contaminated, carburetor contaminated, muffler

clogged, exhaust duct in the cylinder clogged

Operating time

Item

Before

operation

After

lubrication

Daily

(10h)

30h 50h 200h

Shutdown

/rest

Corres-po

nding P

Inspect/clean ○ 10

Engine oil

Replace ○

Tightening parts

(bolt, nut)

Inspect ○ 17

Clean/inspect ○ ―

Fuel tank

Drain fuel ○

Throttle lever Check function ○

Stop switch Check function ○ 13

Low-speed rotation Inspect/adjust ○ 13

Air cleaner Clean ○ 16

Ignition plug Inspect ○ 16

Cooling air duct Clean/inspect ○ 17

Inspect ○ 17

Fuel pipe

Replace

◎

―

Fuel filter Clean/replace ○

Clearance between air intake

valve and air discharge valve

Adjust

◎

―

Oil tube Inspect

◎

Engine overhaul

◎

―

Carburetor Drain fuel ○

*1 Perform initial replacement after 20h operation.

*2 For the 200 operating hour inspection, request Authorized Service Agent or a machine shop.

*3 After emptying the fuel tank, continue to run the engine and drain fuel in the carburetor.

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Makita BHX2500CA Instruction Manual Page 17

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