Baumr-AG 660EX User Manual Download

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Petrol Powered Lawn Mowers

E&OE

Engine Starting and Stopping

Before starting the engine, ensure that you have followed all procedures described in the

. The product is NOT supplied with engine oil, although traces of oil

from the manufacturing process may be present. It is essential to add adequate engine oil of the correct type
to the engine before use

– see

Engine Oil

Failure to add engine oil will void the product warranty

Different models may feature variations in design; for example, some have different
engine types etc. There are currently two major variations in how the engine speed is
controlled:

•

Manual

– This is the more traditional style, using a throttle lever, where the position of

the lever determines the engine speed [just like the accelerator on a car]. Manual
throttle engines generally have a choke setting on the throttle that is used for starting
the engine when it is cold.

•

Automatic

– These engines have a

system that adjusts the throttle
automatically based on the current engine
load. For example, when the grass being
cut is thick etc, the throttle opens up to
maintain engine speed. Engines with an
automatic throttle generally do not have a
choke setting on the throttle, but rather
just a "RUN" or "ON" position.

Major engine controls are identified on the machine by stickers or other markings. The following procedures
and images are typical

– the position or appearance of controls etc may vary.

Starting the Engine

PRIME

– If necessary, "

prime

" the fuel system.

CHOKE

– If the machine is equipped with a "CHOKE" or "COLD" or "COLD START" throttle setting, and

the engine is cold, place the throttle in that position. If the engine is warm or the ambient temperature is
high, place the throttle somewhere in the "RUN" region [generally, just off the "STOP" position is good].

If the machine has no choke, place the throttle in the "START" or "RUN" position.

IGNITION

– If the machine has an engine ON/OFF switch or key switch, place it in the "ON" ("

position. Note that some models may be wired so that "

" is the "ON" position. For key switches, the

"OFF" position allows the key to be removed from the switch. The "ON"
position is reached when the key is rotated from the "OFF" position.

START

– Slowly pull out the starter cord (

) until you feel it engage with

the engine, then pull it out rapidly. The engine should start. Allow the
starter cord to rewind slowly

– do not let it "snap" back.

If the machine is equipped with electric start, press the "START" or
"POWER" button or turn the key switch to the "start" position to use the
electric start. Typically, electric start engines can also be pull started.

Note

: If the machine features an "

engine safety bar

", it must be engaged in order to start the engine and for it

to remain running.

• Many models feature an extended length starter cord that hooks to the mower handle

and allows the engine to be started from a normal standing position behind the mower.

WARM-UP

and THROTTLE

– It is good practice to allow the engine to warm-up and run smoothly

before using the machine. For manual throttles, set the desired engine speed once the engine is warm.

If the engine does not start, repeat step 4. If the engine fails to start after several attempts, refer to

Troubleshooting

Typical Manual

Throttle

Typical Automatic

Throttle

Typical Engine

ON/OFF Switch

Video Tutorial:

Starting 4-Stroke Engines

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