3W 28i Benutzerhandbuch - Seite 7

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for this purpose. Important: The interior of the fuselage must be sealed to prevent damage from

gasoline that sprays from the carburetor. Use a thin epoxy or other appropriate fuel proofing

method. Do not overlook this step as gasoline will melt some materials like Styrofoam very quickly.

Ignition

Consideration needs to be given to the placement of the electronic ignition module. Avoid placing

the module in the path of hot air. Mount the ignition module using the four supplied rubber grommets

so as to create a 1/16" gap between the ignition module and the mounting surface. Without this

1/16" gap the ignition module can overheat. Important: If the electronic ignition overheats it will

malfunction (e.g., backfiring or shutting down).

Ignition details:

•

The red cable is positive (+)

•

The ignition timing has been set at our factory

•

When fitting a new ignition it is important to achieve the correct coordination of the sensor(s)

to the magnets

Canister mufflers

To prevent damage to the header(s) a flexible support bracket is required to mount the canister(s).

The location for this bracket should be at the canister's center of gravity. 3W canisters have a

reinforcement ring at this location.

We suggest creating two compartments in the front section of the fuselage by installing a horizontal

tray. Fuel tanks, batteries, and other equipment can be mounted on top of this tray; the canister(s)

24i / 28i Engine Manual

Refer to our special ignition description for further information

more infos: www.3w-modellmotoren.de