Preparation - BERGONZONI GB BOSS ECON Manuel D'utilisation

PREPARATION

1. Refuelling.
Use a petrol/oil mixture for 2S engines at a ratio of 25 ~30:1 (Fig. 1);
Note: oil addition is essential for lubricating the internal moving parts. After use you might very
well see that a little unburned oil has come out of the silencer.
Always use cans that are suitable for petrol.
2. Checking and cleaning the Air Filter.
The air filter must be cleaned often to avoid compromising engine performance. If the
sponge inside is full of impurities, use air to clean the inside of the filter and the sponge,
after which grease the sponge with oil and close the air filter (Fig. 2);
Rév. 1
GB BOSS ECON
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