3W 70i Manuel - Page 10

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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.

Important:

Remember that when the engine running ever

person must stay behind the line of the rotating propeller; never to the side or the front!

After Initial Break In

•

Use high grade fully synthetic 2-stroke oil

•

Use the oil manufacturer's recommended gas to oil mixture

•

We use 3W 2-stroke oil in our engines here in Germany, but there are other high grade

2-stroke oils that will perform well. The list below shows some 2-stroke oils that our customers

from abroad have used with success.

Note: The engine needs 12-20 hours running time for the break in process to be 100% complete.

Additional installation notes

•

There must be a minimum 4" separation between anything attached to the receiver and

all things related to the ignition (i.e., the ignition itself, and its wires, battery, and switch)

•

Use a plastic spiral sheath to protect the ignition cables

•

Never remove the sparkplug cap by using a mechanical aid like pliers. Only remove the

cap by hand using a twist/pull movement.

•

The spark plug cap must be firmly seated to the sparkplug. If the spark plug cap is not firmly

seated there is a very good possibility that you will experience radio interference.

684i B4 / TS / QS Engine Manual

Pennzoil at 50-1

Redline at 40-1

Amsoil DOMINATOR Racing Oil at 50-1

Amsoil Saber 100:1 Pre-Mix Oil at 100-1

more infos: www.3w-modellmotoren.com