RedMax GZ400 - Troubleshooting Guide; Case 1. Starting failure; Case 2. Lack of power;Poor acceleration; Rough idling; Case 3. Oil does not come out

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Case 1. Starting failure
Make sure the icing prevention system is not
working.
WARNING
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.
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12. Troubleshooting Guide
English
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.
Check fuel for water
or substandard mix-
ture.
Check air filter and
fuel filter for clogging.
Replace with proper
fuel.
Clean.
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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.