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Model: MLR52

IMPORTANT: Read this manual fully before assembly 
and use and observe all safety rules and operating 
instructions

PETROL

ENGINE

Summary of Contents for MLR52

Page 1: ...Model MLR52 IMPORTANT Read this manual fully before assembly and use and observe all safety rules and operating instructions PETROL ENGINE ...

Page 2: ...fication Type Single Cylinder 2 Stroke Air Cooled Cylinder Capacity 51 7 Max Power Revolutions 1 4 6500 kW r min Noise Level 104 dB A Petrol Oil Ratio Synthetic Oil 40 1 Mineral Oil 25 1 Fuel Tank Capacity 1 2 litre Oil Type 2 stroke synthetic or mineral Spark Plug Gap 0 5 0 7 mm Starting Method Easy start manual pull cord Net Weight 4 2 kg Overall Dimensions 283x178x254 mm ...

Page 3: ... Indicates a strong possibility of severe personal injury or death if instructions are not followed CAUTION Indicates a possibility of personal injury or equipment damage if instructions are not followed WARNING Read the instruction carefully Be familiar with the controls and proper use of theengine Store fuel in containers specifically designed for this purpose Refuel outdoors only and do not smo...

Page 4: ...To avoid electrical shock don t touch the ignition plug cap and wires Prevent children and persons other than the operator from touching the engine The exhaust outlet must not point to the operator Ensure the exhaust and engine body are cool before covering the engine after daily work To prevent damage or the misfire of the engine check and maintain the engine regularly and clean any carbon deposi...

Page 5: ...gitate well Pour in the rest of petrol and agitate again for at least one minute As some oils may be difficult to agitate depending on oil ingredients sufficient agitation is necessary for engine protection If the agitation is insufficient there is an increased danger of early piston seizing due to abnormally lean mixture Put a clear indication on the outside of the container to avoid mixing up wi...

Page 6: ...ic pipe Fig 4 3 If the engine is cold close the choke totally Fig 5 If the engine has been run and is still hot the choke must be totally open 4 Open the throttle half way 5 Draw the starter several times slowly and then draw quickly Note If excessive petrol causes starting difficulty remove the ignition plug and the input pipe open the choke and the throttle totally draw the starter several times...

Page 7: ...tion of the engine at the beginning of startup Avoid high idle speed and over speed If the throttle is totally opened the engine will over speed which not only shortens the service life of the engine but also causes more problems in the engine Stopping The Engine 1 Reduce the engine to the slowest speed and run for 3 5 minutes 2 Press the stop switch located either on the equipment or below the pu...

Page 8: ...lug adjust the clearance to 0 5 0 7mm Fig 6 Clean the accumulated carbon in the intake and in the exhaust silencer Fig 6 Fig 7 Fig 8 Storage 1 Totally remove any fuel in the tank and in the carburetor close the choke totally and draw the starter 3 5 times 2 Remove the spark plug Add a small amount of engine oil through the spark plug hole into the cylinder and draw the starter 2 3 times to move th...

Page 9: ...e engine runs but has not enough power The air filter is may be blocked by dust The cylinder exhaust and the silencer may be blocked by accumulated carbon The piston or piston rings and the cylinder may have been badly worn out The fuel strainer may be blocked by dust The cylinder or cylinder head has oil leakage and air leakage 4 The engine stops suddenly when running Run out of fuel The high vol...

Page 10: ...ST MASTER WILL VOID THE WARRANTY This Warranty Does Not Cover 1 Any part that has become inoperative due to misuse abuse neglect accident improper maintenance or alteration 2 The unit if it has not been operated and or maintained in accordance with the owner s manual 3 Normal wear 4 Routine maintenance items such as lubricants blade sharpening 5 Normal deterioration of the exterior finish due to u...

Page 11: ...MLR52 2 Stroke 11 Exploded Diagram ...

Page 12: ...MLR52 2 Stroke 12 Parts List ...

Page 13: ...MLR52 2 Stroke 13 Parts List ...

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Page 16: ...ight to alter data specifications and component parts without prior notice Manufactured Forest Master Limited Registered Office Forest Master Ltd Industry Road Heaton Newcastle Upon Tyne NE6 5XB United Kingdom Tel 44 191 2766553 email info forest master com web www forest master com ...

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