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NOTE: This engine is equipped with an electronic ignition 

to limit the speed. The carburetor also has a fixed jet which 

cannot be adjusted.

At the factory the idling speed has been set to 

approx. 2,600 min

-1

, but the running-in process of a new 

engine may require slight readjustment of the idling speed.

Set the idling speed with a screwdriver (width of blade: 4 mm).

A screwdriver with a molded-on lug, supplied as an optional 

accessory, is useful for the adjustment.

4. Idling adjustment

CAUTION: Carburetor adjustment may only be done by a 

specialist MAKITA service center!

Do not undertake any adjustments to adjusting screws (H) 

and (L) without a tachometer! Incorrect adjustment can lead 

to engine damage!

A tachometer is needed for adjustments to adjusting screws 

(H) and (L), because if the engine runs over its maximum 

rated speed, it can overheat and run out of lubricant. This 

can damage the engine!

Only adjusting screw (T) can be manipulated by the user. If 

the cutting disc moves in idle 

(i.e. without the throttle being 

pressed)

, it is imperative to correct the idle speed!

Idle speed adjustment must only be undertaken when the 

engine is warm, with a clean air filter.

Use a screwdriver (4 mm blade) for idle adjustments. 

Adjusting the carburetor  

Adjusting screw

MAINTENANCE

 CAUTION:

Before doing any work on the Power Cutter 

• 

stop the 

engine and let it cool down

, remove the cutting disc, 

pull the plug cap off the spark plug and wear protective 

gloves!

Carrying out maintenance directly after stopping the engine or 

with the plug cap on the spark plug may cause burns from hot 

engine or injury from inadvertent start up.

Start the Power Cutter only after complete assembly and 

• 

inspection.

Never use gasoline, benzine, thinner, alcohol or the like. 

• 

Discoloration, deformation or cracks may result.

NOTE:

Wipe off dirt from the Power Cutter and then select a clean 

• 

workplace to carry out maintenance.

Summary of Contents for EK7650H

Page 1: ...struction Manual EK7650H EK7651H Important Read this instruction manual carefully before putting the Power Cutter into operation and strictly observe the safety regulations Keep this instruction manua...

Page 2: ...ions 4 Protective equipment 4 Fuels Refuelling 5 Putting into operation 5 Cutoff discs 6 Kickback and lock in 7 Working behavior Method of working 7 Cutting metals 8 Cutting masonry and concrete 8 Tra...

Page 3: ...eye and ear protection and respiratory protection Stop engine Wear protective gloves Warning Kickback No smoking Fuel Gasoline No open fire First Aid Direction of cutting wheel rotation Delivery inven...

Page 4: ...can release toxins may be cut only with the necessary safety precautions and after notification of the proper authorities and under their supervision or that of a person appointed by them Protective...

Page 5: ...re you fuelled the Power Cutter 7 but not within the extended swing range of the cutting disc direction of sparks Fuel cannot be stored for an unlimited period of time Buy only as much as will be cons...

Page 6: ...ed When starting the Power Cutter it must be well supported and securely held The cutting disc must not be touching anything If the cutting disc is new test it by running it at least 60 seconds at top...

Page 7: ...rear handles Never leave the Power Cutter unattended Whenever possible run the Power Cutter at the rated arbour speed see Technical data Only use the Power Cutter during good light and visibility per...

Page 8: ...long cut When cutting material under stress supported material or material in structures always make a notch in the thrust pressure side and then cut from the tension side so that the disc does not lo...

Page 9: ...an the direction and sequence of cuts in such a way that the disc does not get jammed by the cut off piece and that no persons can be injured by falling pieces Transport and storage Always turn off th...

Page 10: ...n manual All other work must be carried out by MAKITA Service 28 Use only original MAKITA spares and accessories The use of non MAKITA spares accessories or cutting discs increases the risk of acciden...

Page 11: ...utomobile gasoline petrol Fuel tank capacity l 1 1 Lubricant engine oil API grade SF class or higher SAE 10W 30 oil automobile 4 stroke engine oil Lubricant quantity l 0 22 Cutting disc for 80 m sec o...

Page 12: ...lug cap 5 Top cover 6 Front handle 7 Protection hood 8 Tensioning screw 9 Hex nut 10 Muffler 11 Starter grip 12 Oil tank cap 13 Fuel tank cap 14 Fuel pump Primmer 15 Cutting disc 16 Outer flange 17 He...

Page 13: ...the hole in the tool remove it before mounting the cutting disc 2 While holding on the wrench 2 in that position use the combination wrench 1 provided and turn the bolt 7 securing the disc counterclo...

Page 14: ...ear the MIN mark of the oil tank fill the oil tank with oil to the MAX mark Oil quantity can be checked externally without removing the oil cap as the oil level can be seen at the external see through...

Page 15: ...r inflammation etc seek medical advice from a specialist doctor immediately Fuel storage period As a rule fuel held in a proper fuel container in a shaded location with good ventilation should be used...

Page 16: ...ete 2 Starting up when engine is warm Press the primer pump several times From the outset place the switch in the I operating position and start the engine using task 3 of procedure 1 above NOTE Repea...

Page 17: ...t and run out of lubricant This can damage the engine Only adjusting screw T can be manipulated by the user If the cutting disc moves in idle i e without the throttle being pressed it is imperative to...

Page 18: ...as shown in the Adjusting V belt tension section Cleaning the protection hood Over time the inside of the protection hood can become caked with material residue especially from wet cutting which if al...

Page 19: ...lter from the filter cover and gently tap and blow on it to clean Gently tap and blow on the inner filter to remove dirt and dust Also periodically wash the inner filter in soapy water and dry thoroug...

Page 20: ...ce on the spark plug remount it attach plug cap and then secure plug cover Top cover Cover lock 0 5 mm Replacing the suction head The fuel tank filter 13 of the suction head can become clogged It is r...

Page 21: ...rter doesn t work well for example the starter rope doesn t return to initial position it is necessary to blow off dust from the starter 14 and the clutch 15 To clean the starter and the clutch remove...

Page 22: ...screw to the left until the end of the screw is visible Fig 1 2 Remove tightening nuts and remove belt cover Fig 1 3 Rotate the hood to the broken line position Remove V belt and then remove cutting...

Page 23: ...A depth limiter can be added for still easier and more accurate cutting It makes it possible to maintain a precise predetermined cut depth To keep down dust and for better cutting disc cooling MAKITA...

Page 24: ...to clutch Engine does not start 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 o...

Page 25: ...ed Make request for inspection and maintenance Abnormal drive system Make request for inspection and maintenance Contaminated clutch and around parts Clean Engine stops soon Engine speed does not incr...

Page 26: ...there is foreign matter inside the fuel tank If there is remove 2 Use a piece of wire etc to pull out fuel filter from neck of tank 3 Press the primer pump until all of the fuel is forced back into t...

Page 27: ...27...

Page 28: ...Makita Corporation 885023C7 www makita com ALA...

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