RCGF 26ccBM - Engine Troubleshooting; Engine Fails to Fire Diagnosis; Engine Starts Then Stops Diagnosis

necessary (see Adjustment of the Engine).
8. If your engine does not start, repeat steps 2-7.
Engine Troubleshooting
If your engine fails to start after the preceding starting procedures please check the
following.
Symptom
Diagnosis
Fix
Engine does not fire
Ignition battery
voltage low
Charge or
replace battery
Battery wires faulty
or loose
Replace wires or
Re-connect/check
connections
Faulty spark plug
or not firing
Replace spark plug
or check for spark
Engine flooded
Remove plug,
disconnect fuel
line, rotate prop
to remove fuel
Engine starts,then rpm
Increases till engine cuts
out
Fuel not reaching
engine
Check for:
a) fuel in tank
b) fuel tubing
cut, blocked,
or kinked
c) carburetor
clogged
This can be done by removing the spark plug from the cylinder and attaching the plug on
the outside of the crankcase. Have an assistant turn the engine over while checking this
and be sure to have the spark plug firmly plugged into the ignition wire.
Warning: The high voltage from the ignition can cause bodily harm, especially when
checking for spark in this manner.
Optional Digital Tachometer (not included)
An optional Digital Tachometer is available that can be directly connected to the ignition
and display the RPM of the engine.The Futaba ® DSC Charge Adapter can be mounted
in the fuselage and allows easy external plug-in of the Digital Tachometer.