3W 342i TS Manuale d'uso - Pagina 9

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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.

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

3W 342i B2 / TS Engine Manual

highspeed needle H:

low speed needle L:

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