17
TROUBLESHOOTING
EnginE spins But will not stARt
• Make sure your glowplug starter is fully charged and
is properly connected to the glowplug. If the starter is
fully charged, replace the glowplug.
• Verify that fuel is getting to the carburetor. Remove the
fuel line from the carburetor and see if there is fuel in
it.
• Check your carb settings. It may be necessary to
adjust the carb settings if the weather has significantly
changed since the last time you ran the engine.
• The engine’s compression may be low due to wear.
This will make the engine difficult to start when it is
warm, and may tend to stall when running and when the
throttle is closed suddenly.
EnginE will not spin (whEn Applying spinnER dRivER)
• The engine may be flooded and hydraulically locked.
• Check for binding at the engine flywheel. If you are not
able to turn the engine by hand, the engine could be
flooded, the piston may be stuck at the top of the
cylinder (TDC), or there could be internal engine damage.
(Note: During engine break-in, it is normal for the engine
to be extremely tight and hard to turn when the piston
reaches the top of the cylinder.)
EnginE is vERy sluggish, hARd to stARt, And will not
idlE duRing initiAl BREAk in
• The factory default break-in settings (on the carburetor)
may be too rich for your location, weather conditions,
or fuel brand. Extremes in temperature, humidity,
barometric pressure, and altitude cannot always be
accounted for by the factory default settings. These
symptoms may occur when air density is very low (such
as in high mountains or extremely cold temperatures.
Under these conditions, lean the main needle valve slightly
(1/8 turn CW), and check if there is any improvement in
starting and idling. Only lean the main needle until the
engine runs and idles reliably, then continue the break-in
process.
• Different fuel brands/types – in combination with extreme
weather conditions – can also make the factory default
break-in settings too rich and cause these symptoms.
Try leaning the fuel mixture slightly (1/8 turn CW),
and check if there is any improvement in starting and
idling.
