Procedures To Be Performed After Every 100 Hours Of Use; Storage; Troubleshooting Guide - Zenoah HB250 Owner's/Operator's Manual

Maintenance
■ PROCEDURES TO BE PERFORMED AFTER
EVERY 50 HOURS OF USE
• Remove the muffler, insert a screwdriver into the
vent, and wipe away any carbon buildup. Wipe
away any carbon buildup on the muffler exhaust
vent and cylinder exhaust port at the same time.
• Tighten all screws, bolts, and fittings.

Storage

BEFORE STORING THE BLOWER:
1. Drain a fuel tank and push the primer bulb until it
becomes empty of fuel.
2. Remove the spark plug and drop a spoonful of
2-cycle oil into the cylider. Crank the engine
several time and install the spark plug.

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
When your unit seems to need further service, please consult with our RedMax service shop in your area.
14 
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
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