Hyundai HY25-4 User Manual Download Page 20

20 

8. TROUBLE SHOOTING

 

WARNING 

Before cleaning, inspecting or repairing your unit, you MUST make sure that the 
engine has stopped and allowed to cool. 
You MUST disconnect the spark plug lead to prevent any accidental starting. 

6.0 

Engine 

Engine will not start

Cause

Corrective measure

Check controls 

Fuel valve OFF 

Move fuel lever to ON position 

Choke OPEN 

Move the choke lever to the 
CLOSED position unless the 
engine is warm 

Engine switch OFF

Turn the engine switch ON

Check fuel 

Out of fuel 

Refuel 

Bad fuel, pump has been 
stored without treating or 
draining fuel or refuelling with 
bad fuel 

Drain the fuel tank and 
carburetor and refuel with 
fresh fuel 

Remove and inspect the spark 
plug 

Faulty spark plug or 
improperly gapped 

Replace with new spark plug 
or adjust the spark plug gap 

Spark plug wet with fuel, 
flooded engine 

Dry the spark plug and 
reinstall. Start engine with 
throttle lever in FAST 

Contact dealer 

Fuel filter clogged, carburetor 
malfunction, ignition 
malfunction, valves stuck etc. 

Return to dealer for repair 

6.1 

Water Pump 

No output from pump 

Cause 

Corrective measure 

Check pump chamber

Pump not primed

Prime pump

Check suction hose 

Hose collapsed, cut or 
punctured 

Replace hose 

Strainer not completely 
underwater 

Sink strainer and end of 
suction hose completely 
underwater 

Air leak at connector 

Replace sealing washer if 
damaged or missing. Tighten 
hose connector and clamp 

Strainer clogged 

Clear debris from strainer 

Measure suction and 
discharge head 

Excessive head 

Relocate pump and hose to 
reduce head 

Check engine 

Engine lacks power 

See engine trouble shooting 
above 

Summary of Contents for HY25-4

Page 1: ...PETROL WATER PUMP HY25 4 HY40 4 User Manual...

Page 2: ...LOCATIONS 10 3 ASSEMBLY 10 4 STARTING PROCEDURE 12 5 STOPPING PROCEDURE 13 6 MAINTENANCE 14 17 7 STORAGE 18 19 8 TROUBLE SHOOTING 20 21 9 SPECIFICATION 21 10 PART LISITNGS 22 25 11 DECLARATIONS OF CO...

Page 3: ...l of the following warning signs symbols and or PPE pictograms may appear throughout this manual You MUST adhere to their warnings Failure to do so may result in personal injury to yourself or those a...

Page 4: ...e in any doubt contact yourdealer 1 15 If you think you have or someone around you has been affected by carbon monoxide poisoning 1 16 Get them fresh air immediately by leaving the affected area or by...

Page 5: ...l NEVER work on LIVE ENERGISEDequipment 1 42 Prior to carrying out any maintenance work you MUST identify electrical isolation methods and isolate all electricalsupplies 1 43 Prior to use and with all...

Page 6: ...reas 1 59 1 There is an explosion risk if the battery terminals are short circuited when connecting disconnecting ALWAYS exercise great care so that the terminals or battery leads are NOT allowed to t...

Page 7: ...OREuse 1 83 Check the water pump over before use if any problems are found you MUST make sure they are dealt with by the appropriate person beforeuse 1 84 Check around and underneath the water pump fo...

Page 8: ...cover 1 96 Remove air filter cartridge 2 1 97 Remove inspect and clean foam element 3 all models Clean by washing in warm soapy water rinse with fresh water and allow to dry fully soak it in clean en...

Page 9: ...aced on a level ground Un screw the fuel tank cap and check the fuel level If the level is too low add fuel screw on the fuel tank cap and tightenit 1 99 3 Only use straight fresh unleaded petrol 3 1...

Page 10: ...clampring 4 over the hose connector and tighten in a clockwise direction 2 3 Take the hose clamp ring 5 over the end of the suction hose 6 then push the suction hose over the end of theconnector Once...

Page 11: ...o the upper level oil level with approx 0 4l of SAE10W 30 4 stroke oil and replace the oil fillercap dipstick 2 7 Do not over fill 2 8 2 9 2 10 2 11 2 12 2 13 CAUTION All fuels are flammable You MUST...

Page 12: ...e and the pump not operating If the unit has been operated dry stop the machine and allow to cool before adding priming water 3 0 Remove the self priming water filler cap and fill withwater 3 1 3 2 3...

Page 13: ...against the engine Return it slowly to avoid and possible damage to the starter 3 6 As the engine warms up gradually open the choke until the engine runssmoothly 3 7 Set the throttle to the desired r...

Page 14: ...ore frequently in dusty environments This pump should be serviced by an authorised water pump dealer 4 0 Maintenance Schedule Regular Service Period Month or operating hour interval Whichever comes fi...

Page 15: ...30 4 strokeoil 4 7 NOTE Please dispose of used motor oil in a matter that is compatible with the environment We suggest taking it in a sealed container to your local recycling centre for reclamation D...

Page 16: ...foam air filter element from thehousing 4 10 4 11 4 12 Wash the element in a solution of household detergent and warm water or a non flammable or high flashpoint solvent until clean then rinse thorou...

Page 17: ...spark plug wrench provided Visually inspect the spark plug and discard if chipped orcracked If the spark plug is to be reused then clean with a soft wire brush and reset the gap using a feeler gauge...

Page 18: ...mp clean water through the pump before shutting down or the impeller may be damaged when restarting 5 4 After flushing remove the pump drain plug and drain as much water as possible from the pump hous...

Page 19: ...t bowl 1 year or longer Drain the fuel tank Drain the carburetor float bowl After removal from storage drain stored fuel into a suitable container Fill with fresh fuel Use fuel conditioners that are f...

Page 20: ...spark plug or improperly gapped Replace with new spark plug or adjust the spark plug gap Spark plug wet with fuel flooded engine Dry the spark plug and reinstall Start engine with throttle lever in F...

Page 21: ...discharge head Excessive head Relocate pump and hose to reduce head Check engine Engine lacks power See engine trouble shooting above 9 SPECIFICATION 6 3 Model HY25 4 HY40 4 Engine type 152F 152F Eng...

Page 22: ...ad bolts M5 118 Pieces 2 4 Exhaust double head bolts M6 52 Pieces 2 5 Crankshaft oil seal and lid oil seal 17 30 6 Pieces 2 6 Oil filter cover 154F One 1 7 Gasket 154F Pieces 1 8 Under the windshield...

Page 23: ...n of connecting rods 154F Pieces 1 32 piston 154F Pieces 1 33 Piston pin 154F Pieces 1 34 Piston pin ring 154F Pieces 2 35 Piston ring group 154F Pieces 1 35 1 Oil ring Pieces 1 35 2 A ring Pieces 1 3...

Page 24: ...B T5787 1986 Pieces 5 63 Speed control arm One 1 64 Speed control rod One 1 65 Adjustable arm fastening bolts M6 21 T type Pieces 1 66 Reset the tension spring 154F Pieces 1 67 Fine speed spring 154F...

Page 25: ...n Washer 4 6 Bolt 4 7 Mechanical seal 1 8 Pump sealing ring 1 9 Impeller 1 10 Diffuser 1 11 O ring 1 12 Pump body 1 13 O ring 1 14 Outlet flange 1 15 O ring 2 16 Whorl plug 2 17 Check valve 1 18 Inlet...

Page 26: ...td confirms that the Hyundai water pump conforms to the following CE directives 2006 42 EC Machinery directive 2004 108 EC EMC directive 73 23 EC The low voltage directive 97 68 EC NRMM emissions dire...

Page 27: ...DETAILS Postal address Genpower Limited Isaac Way Pembroke Dock Pembrokeshire SA72 4RW UK Telephone contact number Office 44 0 1646 687880 Email contact service genpower co uk Website www hyundaipowe...

Page 28: ...nquiries Please Contact GENPOWER LTD Isaac Way London Road Pembroke Dock UNITED KINGDOM SA72 4RW T 44 0 1646 687 880 F 44 0 1646 686 198 E info hyundaipowerequipment co uk www hyundaipowerequipment co...

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