Zenoah CHTZ2500 - Manual (Page 24)

10. Troubleshooting guide
Case 1. Starting failure
CHECK PROBABLE CAUSES ACTION
fuel tank ➞ incorrect fuel ➞ drain it and with correct fuel
fuel filter ➞ fuel filter is clogged ➞ clean
carburetor adjustment screw ➞ out of normal range ➞ adjust to normal range
sparking (no spark) ➞ spark plug is fouled/wet ➞ clean/dry
➞ plug gap is incorrect ➞ correct (GAP: 0.6~0.7mm)
spark plug ➞ disconnected ➞ retighten
Case 2. Engine starts but does not keep running/Hard re-starting.
CHECK PROBABLE CAUSES ACTION
fuel tank ➞ incorrect fuel or staled fuel ➞ drain it and with correct fuel
carburetor adjustment screw ➞ out of normal range ➞ adjust to normal range
muffler,cylinder (exhaust port) ➞ carbon is built-up ➞ wipe away
air cleaner ➞ clogged with dust ➞ wash
cylinder fin, fan cover ➞ clogged with dust ➞ clean
When your unit seems to need further service, please consult with our RedMax service shop in your area.
9. Storage
• Oil the blade to prevent rust.
• Empty the fuel tank and put the cap back on.
• Remove the spark plug, pour a small amount of
oil into the cylinder.
• Rotate the crankshaft several times using the
starting rope in order to distribute the oil. Put the
spark plug back in.
• Wrap the engine with a plastic sheet.
• Store the trimmer in a dry place, preferably not
in direct contact with the floor and away from
heat sources.
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