3W 3W-55Xi CS TS Panduan Pengoperasian - Halaman 10

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Important: Do not remove the carburetor spring as the spring helps keep the carburetor butterfly

aligned properly. Merely release the ends of the spring so that it no longer holds the butterfly

closed.

Carburetor Linkage

Included with your engine is a metal bracket to extent your carburetor pushrod horn. Fix this

bracket onto the carburetor horn with a 2.6m machine screw and nut. Then solder the arm in place.

Refer to the attached illustration.

example image

Note: The use of a soft pushrod for the throttle (plastic or nyrod) is not recommended. Use a metal

or carbon fiber pushrod with a plastic ball joint or plastic clevis at each end. This will keep your

RPM much more consistent and accurate around idle where it really counts.

Engine Break In

•

Use a 2-stroke petroleum based oil (preferably ashless) as this type of oil has a good

honing effect which helps to break in the engine

•

Use a mixture of 32-1 or even 30-1

•

Use this fuel mixture for approximately 2-3 hours of run time

•

Use a high Octane unleaded fuel (from 92 Octane is ideal)

We suggest starting the break in process of the engine on a test stand; for approximately one

hour. This time should be used to get familiar with the engine. Do not run the engine at full throttle

for more than ten seconds during this test stand break in. The reason for this is that you are not

getting the normal cooling effect that you would if the engine was in a model that was flying.

Another method that can be used for break in would be to set the engine between 2000-2500 rpm

and let it run for 4 hours. After that the engine would basically be broken in. Note: For break-in a

smaller propeller is recommended.

Operation manual

3W Modellmotoren GmbH, Hasswiesenstrasse 22, 63322 Rödermark