RedMax GZ4000 - Manual (Page 18)

US-18
GZ4000
14. Troubleshooting guide
• 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.
12. Storage
13. Disposal
• When disposing your machine, fuel or
oil for the machine, be sure to allow
your local regulations.
Case 1. Starting failure
Make sure the icing prevention system is not
working.
WARNING
➜
➜
➜
➜
➜
Check fuel for water
or substandard mix-
ture.
Check for engine
flooding.
Check the spark.
Replace with proper
fuel.
Remove and dry the
spark plug.
Then pull the starter
again with no choke.
Replace with a new
plug.
Case 2. Lack of power/Poor acceleration/ Rough
idling
Case 3. Oil does not come out
When your unit seems to need further service, please
consult with our service shop in your area.
➜
➜
➜
➜
➜
➜➜
➜
➜
Check fuel for water
or substandard mix-
ture.
Check air filter and
fuel filter for clogging.
Check carburetor
for inadequate ad-
justment.
Replace with proper
fuel.
Clean.
Readjust speed needles.
➜
Check muffler and
cylinder (exhaust port).
Wipe away carbon
buildup.
Check oil for sub-
standard quality.
Check oil passage
and ports for clog-
ging.
Replace.
Clean.