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11. Troubleshooting guideCase 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.