Storage; Troubleshooting Guide - Zenoah EXtreme EXZ2500S-BC, EX-BC, EX-LRT, EX-PS, EX-HE Owner's/Operator's Manual

10. Storage

11. Troubleshooting guide

Case 1. Starting failure
CHECK
fuel tank
fuel filter
carburetor adjustment screw ➞
sparking (no spark)
spark plug
Case 2. Engine starts but does not keep running/Hard re-starting.
CHECK
fuel tank
carburetor adjustment screw
muffler,cylinder (exhaust port) ➞ carbon is built-up
air cleaner
cylinder fin, fan cover
When your unit seems to need further service, please consult with our RedMax service shop in your area.
44 
• 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.
PROBABLE CAUSES
➞
incorrect fuel
➞
fuel filter is clogged
out of normal range
➞
spark plug is fouled/wet
➞
plug gap is incorrect
➞
disconnected
PROBABLE CAUSES
➞ incorrect fuel or staled fuel ➞
➞ out of normal range
➞ clogged with dust
➞ clogged with dust
ACTION
➞
drain it and with correct fuel
➞
clean
➞
adjust to normal range
➞
clean/dry
➞
correct (GAP: 0.6~0.7mm)
➞
retighten
ACTION
drain it and with correct fuel
➞
adjust to normal range
➞
wipe away
➞
wash
➞
clean