3W 112i QS Manual - Página 10

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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.

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 (98 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.

112i B4 / QS Engine Manual

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