Start-Up Procedure; Breaking-In The Engine - EMAK BCH 250 Manual De Uso

colour of the skin. These symptoms normally
appear in the fingers, hands or wrists.
Before starting the engine, make sure that the
throttle lever works freely.
WARNING: Follow safety instruction for
fuel handling. Always shut off engine before
fuelling. Never add fuel to a machine with a
running or hot engine. Move at least 3 m from
refuelling site before starting engine. DO
NOT SMOKE!
1. Clean surface around fuel cap to prevent
contamination.
2. Loosen fuel cap slowly.
3. Carefully pour fuel mixture into the tank.
Avoid spillage.
4. Prior to replacing the fuel cap, clean and
inspect the gasket.
5. Immediately replace fuel cap and hand
tighten. Wipe up any fuel spillage.
WARNING: Check for fuel leaks, if any
are found, correct before use. Contact a
Servicing Dealer if necessary.
Engine is Flooded
- Engage a suitable tool in the spark plug boot.
- Pry off the spark plug boot.
- Unscrew and dry off the spark plug.
- Open the throttle wide.
- Pull the starter rope several times to clear the
combustion chamber.
- Refit the spark plug and connect the spark
plug boot, press it down firmly.
- Set the choke lever to OPEN position – even
if engine is cold.
- Now start the engine.

START-UP PROCEDURE

1) Slowly push the purge bulb 4 times (8, Fig.1).
2) Pull the choke lever (14, Fig.1) in the CLOSE
position (A, Fig.11)
3) Pull the throttle lever (17, Fig. 1) and stop it
at half-throttle by pressing the button (21),
then release the lever (17).
4) Place the brush cutter on the ground in a
stable position. Check that the blade is free.
Holding the brush cutter down (Fig.12), pull
the starter rope until the first kick over of the
engine is heard (no more than 3 pulls). A new
unit may require additional pulls.
5) Push the choke lever (14, Fig.1) in OPEN
position (B, Fig.11).
6) Pull the starter cord to start the engine. Once
the machine is started, warm up the machine
for about few seconds, without touch the
throttle lever. The machine could need more
seconds to warm up with cold weather or at
high altitudes. Finally, push the throttle lever
(17, Fig.1) for deactivate the half-throttle.
CAUTION:
- Never wrap the starter cord around your
hand.
- When pulling the starter rope, do not
use the full extent of the rope as this can
cause the rope to break.
- Do not let starter rope snap back. Hold the
starter handle (13, Fig.1) and let the rope
rewind slowly.
WARNING: Once the engine is warmed
up do not use the choke to start up again.
WARNING: Use the semi-acceleration
device only in the phase of starting the engine
to cold.

BREAKING-IN THE ENGINE

The engine reaches the maximum power after
5÷8 hours of activity.
During this period of breaking-in do not use the
engine at wide open throttle without load, to avoid
excessive functioning stress.
WARNING! - During the breaking-in
period do not vary the carburetion to obtain a
presumed power increment; the engine can be
damaged.
NOTE: It is normal for smoke to be emitted
from a new engine during and after first use.
GB
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