Zenoah PSZ2500 manual Storage, Troubleshooting guide, Check Probable Causes Action

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10. Storage

Aged fuel is one of major causes of engine starting failure. Before storing the unit, empty the fuel tank and run the engine until it uses all the fuel left in the fuel line and the carburetor. Store the unit indoor taking necessary measures for rust prevention.

11. Troubleshooting guide

Case 1. Starting failure

CHECK

PROBABLE CAUSES

ACTION

fuel tank

incorrect fuel

fuel filter

fuel filter is clogged

carburetor adjustment screw

out of normal range

sparking (no spark)

spark plug is fouled/wet

 

plug gap is incorrect

spark plug

disconnected

drain it and with correct fuel

clean

adjust to normal range

clean/dry

correct (GAP: 0.6~0.7mm)

retighten

Case 2. Engine starts but does not keep running/Hard re-starting.

CHECK

PROBABLE CAUSES

ACTION

fuel tank

incorrect fuel or staled fuel

carburetor adjustment screw

out of normal range

muffler,cylinder (exhaust port)

carbon is built-up

air cleaner

clogged with dust

cylinder fin, fan cover

clogged with dust

drain it and with correct fuel

adjust to normal range

wipe away

wash

clean

When your unit seems to need further service, please consult with our RedMax service shop in your area.

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Image 28 Contents
PSZ2500 848-A52-93A1Safety First ContentsParts location SpecificationsPSZ2500 Avertissement Symbols on the machine Important Engine InformationWorking Condition For safe operationWorking Circumstance Working Plan Before Starting the Engine Starting the EngineUsing the Product Maintenance If Someone ComesHandling Fuel TransportationBeware of kickback Kickback and Pinching Safety PrecautionsBeware of pinching  13  Set up Chain tension adjusting screw Loosen Tighten SE4 SE5 SE6 SE7Pay attention to the correct direction of the saw chain Hole Moving direction Chain tensioner nutSE8 Balance UnitFuel and chain oil HOW to MIX FuelRecommended Mixing Ratio Gasoline 50OIL For Your Engine LIFE, Avoid Fueling the UnitChain OIL Operation OP1 OP2OP33 OP4 OP5 Starting EngineAdjusting OIL Flow Rate OP6 Stopping Engine OP4Checking OIL Supply Chain oilAdjusting Throttle Cable Adjusting Idling Speed OP9OP7 OP8 OP9Maintenance Maintenance ChartMA1 MA2 MA3 Oiling Port Guide BARSprocket MA4 MA5 MA6SAW Chain MA7 MA8 MA9 Gear CaseAIR Filter Fuel FilterReplacement Plug is a NGK CMR7A Spark PlugTightening Torque Muffler Spark ArresterProcedures to be Performed After Every 100 Hours of USE MA141 MA15Intake AIR Cooling Vent Cylinder Intake air cooling vent backStorage Troubleshooting guideCheck Probable Causes Action Parts list  30   31   32   33  Limited Warranty RedMax Garantie limitée Komatsu Zenoah America INC
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