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Working instruction for
Zenoah engines
Our 1:5 On-Road and 1:6 Truck models we deliver with standard air filter including
factory-oiled filter insert. This filter is sufficient for the use on tracks with low forma-
tion of dust. As a precaution we recommend to change or rather clean the foam fil-
ter inserts more often and soak them afterwards again completely with filter oil
06441. According to the higher formation of dust we standard equipped our 1:6 Off-
Road models with the FG Off-Road inlet air filter with oiled filter insert. Correspon-
ding to the formation of dust you also have to clean the filter inserts of these Off-
Road filters, check them on fissures and soak them in filter oil 06441, too.
Attention! The K & N air filter oil is not suitable for foam filters. Further inlet slencers,
filter oils a.s.o. for FG models and other brands you will find in our FG main catalog.
1. Initial operation of the engine
Always check if the air filter and also the air filter adapter are seated
correct and firm before starting the engine. The basic adjustment of
the engine is preset by the factory. At high formation of dust we rec-
ommend to seal the connection between carburetor, air filter
adapter and air filter additionally with FG Silicone 06503. The petroil
lubrication should be 1:33 which means a share of 3 % oil. Suitable
is Super or Superplus petrol. We recommend our FG Panolin
Racing Oil for an optimal lubrication, Item N°. 08559.
2. Starting the cold engine
Close the carburetor throttle valve or rather bring it into neutral gear.
Now shut the choke flap at the carburetor. Press the primer pump at
the carburetor until the pump is full with fuel. Slowly pull the rope
starter until you feel the first resistance, then pull strongly until the
engine ignites audible. Normally the engine will stop again after the
first ignition. Now open the choke flap and pull the rope starter once
again until the engine runs. Never run the cold engine at full-load or
with high speed ranges, rather warm-up the engine for approx. 3-4
minutes at a low speed range. We can not grant a guarantee for
damages.
3. Starting the warm engine
Leave the choke clap open, press the primer pump and actuate the
rope starter. To turn the engine off, press the ignition switch until the
engine stops.
4. Carburetor adjustment
The adjustment of the carburetor is preset by the factory adequate
to the local conditions. Depending on air filter, exhaust silencer and
operating conditions a correction may be necessary.
Drive the engine until it has reached its working temperature. If the
engine decelerates a little during the acceleration, then it runs too
lean. In this case open the No-load adjusting screw L anticlockwise.
If the engine revs up only slowly stammering and under clouds of
smoke, then the engine probably runs with an overrich mixture. In
that case you should turn the No-load adjusting screw L clockwise.
In order to adjust the maximum range of speed, lift the rear wheels
and drive the warm engine shortly at full speed. Now you can turn
the Full-load adjusting screw H to the left (lean mixture) or to the
right (overrich mixture).
ATTENTION! Don't drive the engine in a no-load condition too long
at the maximum speed range. Mostly the neutral gear adjusting
screw has to be regulated once again if it was necessary to adjust
the engine at the No-load adjusting screw L or Full-load adjusting
screw H.
5. Basic adjustment of the carburetor
The declared values are reference values. Mostly the carburetor has
to be readjusted. If you have the feeling that the No-load adjusting
screw L or the Full-load adjusting screw H is completely misadjust-
ed, then close both adjusting screws L + H carefully. Afterwards
open the adjusting screws anticlockwise corresponding to the fol-
lowing table.
Full-load
adjusting screw H
Formula 1/ Zenoah G230/260RC
Formula 1/ FG CY23/CY26
Sportsline
Zen. ZG22/ G2D
Competition Zen. G230/260RC
Buggy
FG CY23/CY26
No-load
adjusting screw L
1
turns
1.25 turns
1
turns
1.25 turns
1
turns
1
turns
1.50 turns
1.25 turns
1.25 turns
1.25 turns
Zenoah/ CY engine
No-load
Full-load
adjusting screw H
adjusting screw L
Choke lever
Primer
Neutral gear
adjusting screw
Ignition switch
Zenoah/ CY engine
Full-load
adjusting screw H
No-load
adjusting screw L
Neutral gear
adjusting screw
Pull start
Ignition switch
Metal coating for standard plug cap
During the first two tank fillings you should avoid maximum speed
ranges in no-load condition as well as longer full-speed drives on
parking places. The first thing we recommend to check is the ef-
fective radius of your radio control system with running engine.
Never operate the engine in closed rooms without sufficient ven-
tilation. Further safety instructions are enclosed with the engines.
FG Modellsport GmbH
Spanningerstr. 2
73650 Winterbach-Germany
Phone: +49 7181 9677-0
Fax: +49 7181 9677-20
info@fg-modellsport.de
www.fg-modellsport.de
Pull start
Choke lever
Primer
A.Motor-110907
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