Zenoah EXZ2500S-BC, EX-BC, EX-LRT, EX-PS, EX-HE, EXZ2600DL Storage, Troubleshooting guide,  44 

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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