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Troubleshooting

The engine does not start

Check

Possible cause

Procedure

Stop switch.

The stop switch is in the stop position.

Set the stop switch to the start position.

Starter pawls.

The starter pawls cannot move freely.

Remove the starter cover and clean around

the starter pawls.

Let 

wemars

 service  help you.

Fuel tank.

Incorrect fuel type.

Drain the fuel tank and fill with correct fuel.

Spark plug.

The spark plug is dirty or wet.

Make sure that the spark plug is dry and

clean.

The spark plug electrode gap is incorrect.

Clean the spark plug. Make sure that the

electrode gap is correct. Make sure that the

spark plug has a supressor.

Refer to technical data for correct electrode

gap.

The spark plug is loose.

Tighten the spark plug.

The engine starts but stops again

Check

Possible cause

Procedure

Fuel tank.

Incorrect fuel type.

Empty the fuel tank and fill it with cor-

rect fuel.

Air filter.

The air filter is clogged.

Clean the air filter.

20

Summary of Contents for WS-ST42G

Page 1: ...WS ST42G...

Page 2: ...with a trimmer head to cut grass Do not use the product for other tasks than grass trimming and grass clearing Note National or local regulations may regulate the use Comply to given regulations Prod...

Page 3: ...ry Maximum speed of the output shaft 50FT 15 m 50FT 15 m Keep a minimum of 15 m distance to persons and animals during operation of the product Hex Wrench Screwdriver Wrench Spacer Catcher Allen Key T...

Page 4: ...operate with this engine unit are the cutting attachments that we recommend Never allow children to use or be in the vicinity of the product As the product is equipped with a spring loaded start stop...

Page 5: ...lead to circulatory damage or nerve damage in people who have impaired circulation Contact your doctor if you experience symptoms of overexposure to vibration These symptoms include numbness loss of f...

Page 6: ...product with defective safety components The product s safety equipment must be inspected and maintained as described in this section If your product fails any of these checks contact Wemars service t...

Page 7: ...e stop position and make sure that the engine stops O stop To do a check of the cutting attachment guard WARNING Do not use a cutting attachment without an approved and correctly attached cutting atta...

Page 8: ...care when handling fuel Bear in mind the risk o re explosion and inhaling fumes Observe caution when handling fuel and make sure there is adequate ventilation Fuel and fuel fumes are highly in ammabl...

Page 9: ...disc aligns with the related hole in the gear housing 5 Put the locking allen key in the hole to lock the shaft To assemble the U handle 2 Install the u handle and tighten the screws 1 Install the gra...

Page 10: ...iece shaft 1 Remove the shaft A cap 3 Align the tab of the cutting attachment A with the arrow of the coupling B B 2 Turn the knob to loosen the coupling Knob A A To assemble the 3T blade head Drive d...

Page 11: ...ate faces out 5 Make sure soft side is down the shoulder strap 4 Make sure you back looks like this 6 Make sure the board is on the right side of your body 7 Wearing the harness Front Right 4 Carefull...

Page 12: ...s G Buckle Hook 2 Loosen the hook screw and move it to the best position B B Hook screw 3 Emergency Release Pull the red tag G the buckle will breaks away 3 Maintain balance and reduce burden on hands...

Page 13: ...unning condition which can damage the engine We recommend a higher octane rating when you do work at continuous high speed Two stroke oil CAUTION Unsatisfactory oil quality and or incorrect oil fuel r...

Page 14: ...acles such as stones branches and ditches Do an overhaul inspection of the product Do the safety inspections maintenance and servicing that are given in this manual Make sure that all covers trimmer g...

Page 15: ...can cause damage to the product To stop the engine Stop the engine o stop I open To start a warm engine 2 Push the air primer bulb 6 10 times Primer Bulb 1 Open the engine I open o stop 3 Pull the sta...

Page 16: ...rottle when you cut grass near objects To cut the grass 1 Make sure that the trimmer line is parallel to the ground when you cut the grass 2 Do not push the trimmer head to the ground This can cause d...

Page 17: ...for leaks X Clean the cooling system X Examine the starter and the starter rope for damages X Examine the vibration damping elements for damages and cracks X Clean the external parts of the spark plug...

Page 18: ...sk of unwanted material on the spark plug electrodes obey these instructions a Make sure that the idle speed is correctly adjusted b Make sure that the fuel mixture is correct c Make sure that the air...

Page 19: ...19 25 1 28mm 9T Spool for grass trimmer line Engine idling speed WS ST42G 42 7cc 2 255 Fuel tank capacity 1200Ml...

Page 20: ...ll with correct fuel Spark plug The spark plug is dirty or wet Make sure that the spark plug is dry and clean The spark plug electrode gap is incorrect Clean the spark plug Make sure that the electro...

Page 21: ...X 15CM 6 Click 10 20 9 21...

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