Trouble Shooting I ( The engine will not start)
1.! Check the battery voltage. It should be over 6.6+ when checked under load. Also check
all the ignition connections, wiring and switches.
2.
! Examine the fuel system for clogs, jams or a bad fuel line
. Make sure the propeller is
flipped over with authority. Check the carburetor mount is not loose, as air leaks may
cause the engine to not start.
3.
! If too much fuel is dripping from the carburetor, the engine may be overflowed. I
f so,
you can:(a)Turn off the ignition system and ensure the choke and throttle are opened
completely. (b) Flip the propeller about 10 times at full throttle. (c) Close the throttle to
idle position and follow the starting procedure again.
For single cylinder engines (GP-38, GP61 and GP88) you can also unscrew the spark
plugs and check its contacts, and dry or replace the spark plug(s). Further starting should
only be done with the throttle is turned down. (If the plug(s)
is/are dry, then it may be
that not enough fuel has been drawn into the carburetor. In that case).
! If the engine stops soon after starting even when the starting procedure
has been
followed, it is probably because the low needle is too lean. Turn the low needle
counterclockwise for approximately 1/8of a turn.
5.
! If the engine does not reach a normal RPM at full throttle, shift back
the GP
muffler(s) to the original needle setting. If the problem remains, it may result from(a) a
low battery;(b) the wrong needle setting (in which case we suggest adjusting 1/8 of a turn
at a time until the RPM reaches a peak); (c)the diameter of the propeller is l
recommended, in which case the RPM will be lower
1
;
(d)the gasoline and oil mixture
may not be correct
2
; (e) the muffler/ pipe system affecting the RPM (if you are using a
pipe, make sure the length of the header, and the needle setting suit the pipe and header
you are using. If you are not sure about the length of the header, contact your dealer
. We
are happy to be at your service); (f) bad ignition timing and a malfunctioning spark plug,
which will cause a lower RPM as the crankshaft may be twisted.
Caution: If the engine is running roughly or vibrating strongly: (1) Make sure the
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1
Please refer to Choosing a Suitable Propeller
2
Please refer to Fuel and Oil Mixture
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