·Check the spark plug and replace if necessary.
·Check the fuel lines.
·Clean the fuel filter inside the carburetor periodically (approximately every 20 flights)
or irregularities may occur with the needle adjustment and the engine may work
unreliably.
如果打算长时间不用，请清洗引擎后放置在干燥处倒置引擎，请取下火花塞放置。请防止昆
虫，灰尘及水汽进入引擎内
If you plan to not use the engine for a long time, please clean the engine and place it in a dry
place in an upside-down position having removed the spark plug.
Please prevent foreign matter, dust and moisture from entering into the engine by plugging
the carburetor and spark plug hole with cotton cloth (or similar)
Please drain the fuel tank in the model of all gasoline at the end of each flying session.
问题诊断(Troubleshooting Guide)
If the engine does not start please check:
·Whether enough fuel has been drawn into the carburetor (if the plug is dry it means not
enough fuel is getting to the engine). Is the fuel tank full ? Has the clunk fallen off the
pickup line ? Is there a kink in the fuel line from the tank to the carburetor?
·Are you using the right ratio of fuel mix ?
·Is there too much fuel inside the cylinder ? If the motor is flooded, invert the engine and
remove the spark plug and drain excess fuel.
·Whether the ignition is working correctly ? Is the power supply for the electronic ignition
charged? Is it turned on?
·That the plug cap from the electronic ignition is firmly seated on the top of the spark plug.
·Faulty spark plug ? If in doubt, please replace it.
You hear an abnormal sound when the engine is running, please check:
·One of the mounting screws is loose or not.
·Is the muffler loose ?
·That the crankshaft bearings are OK. Check for sideways ‘play’ in the crankshaft by trying
to deflect the propeller sideways.
·Have any unknown objects slipped into the inside of the engine via the carburetor?
Engine Power rapidly declines please check:
·Carburetor is correctly adjusted
·Ignition timing is correct
·The piston ring and cylinder have been scored by the entry of foreign matter
·Overheating issues
无法启动请检查：是否进油?油料是否正常?是否汽缸内油太多?点火器是否点火?点火时间是否
正常?
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