Changing The Engine Oil; Adjusting The Bowden Cable; Sharpening/Replacing The Blade; Adjusting The Carburettor - Grizzly BRM 51 BSA Mode D'emploi

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simultaneously pulling and turn-
ing.
2. Unscrew spark plug counter
clockwise with spark plug socket.
3. Check the spark gap using a
feeler gauge (available from
specialist shops). The spark gap
must be at least 0.76 mm.
4. If necessary, adjust the gap by
carefully bending the ground
electrode on the spark plug.
5. Clean the spark plug with a wire
brush.
6. Insert the cleaned and adjusted
spark plug or replace a damaged
spark plug with a new one (rec-
ommended torque 20 Nm, de-
termined with a torque wrench)
(see "replacement parts").

Changing the Engine Oil

For oil change, tilt equipment back-
ward with handlebar. Do not place
equipment on side to prevent opera-
ting liquids from leaking.
• Change the engine oil for the
first time after around 5 opera-
ting hours then every 50 opera-
ting hours or annually.
• Change the engine oil when the
engine is warm.
• Dispose of the used oil in an
ecofriendly manner (see "dispos-
al / environmental protection").
1. Remove the spark plug terminal (
11).
2. Open oil drainage screw (internal square
socket) at the base of the equipment.
3. Drain the motor oil into a suitable contai-
ner.
84
4. Wipe up spilled motor oil and refasten oil
drainage screw.
5. Place equipment upright and refill motor
oil (see „Initial Operation").

Adjusting the Bowden Cable

If the Bowden cable becomes misplaced
for the drive and has too much play, it can
be adjusted.
1. Loosen the small lock nut (30a).
2. - Turn the adjusting nut (30b)
anticlockwise:
The Bowden cable shortens.
- Turn the adjusting nut (30b)
clockwise:
The Bowden cable lengthens.

Sharpening/Replacing the Blade

• Take off the spark plug (
check the blade for wear and dam-
age.
• Always have a blunt blade resharp-
ened by a specialist workshop, as an
imbalance check can be carried out
there.
• Always have a specialist workshop
change a damaged or imbalanced
blade. Incorrect installation can result
in serious injury.

Adjusting the Carburettor

The carburettor has been preset in the
factory for optimum performance. If read-
justments are required, have the adjust-
ments made by a specialist workshop.
11) and