Troubleshooting
Problem
Engine does not start
Engine operation is
unstable at low speeds
Engine operation is
unstable at high speeds
Engine stalls
Is the power turned on?
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Are the connectors securely connected?
Is the lead wire broken?
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Is the plug burned out?
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Has Lmt been set?
Is engine speed displayed on the EC-1 when the engine is running?
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Are abnormal values (±100%) displayed for LmL, LmM or LmH?
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Are the rubber dampers of the engine soft mount too soft?
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Are the rubber dampers of the soft mount damaged?
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Is the throttle linkage sticking?
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Is the linkage too weak causing it to be affected by vibrations?
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Is the check valve normal?
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Is the servo malfunctioning or is the servo mount loose?
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Is the propeller size correct?
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Is the engine running at 8,000 rpm or higher?
Is there an abnormality in the engine soft mount (cracked)?
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When there are occasional disturbances in engine speed when the
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air-fuel mixture is rich at high speeds, there may be a problem with
the temperature sensor. Is an abnormal temperature (300˚C or
higher) displayed for Tmax Tmp?
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Is the filter clogged?
Are the rubber dampers of the engine soft mount too soft?
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Are the rubber dampers of the soft mount damaged?
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Has the plug deteriorated?
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Is there any sticking or abnormalities in the linkage?
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Is the oil content of the fuel correct?
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Is the engine speed too low?
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Is the check valve functioning properly?
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Is the air control servo operating abnormally (hunting)?
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If the sound of the engine remains unchanged when diving during
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flight and stick response is lost, this indicates that there is too much
fuel being supplied to the engine. Try adjusting TmL or TmM in the (-)
direction.
Is the air control linkage to weak so that the operation of the air valve
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either stops or is delayed relative to the operation of the servo? (Try
using a thicker component for the linkage.)
Is the carburetor operating? (Check the carburetor retainer.)
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Confirmation
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