Starter Unit; Engine; Spark Plug; Muffler - Efco DS 2400D-PU Operator's Instruction Manual

Starter Unit

WARNING: The coil spring is
en
under tension and could fly apart
causing serious injuries. Never
try to disassemble or modify it.

Engine

Clean the cylinder fins with compressed air or
a brush periodically. Dangerous overheating
of engine may occur due to impurities on the
cylinder.
WARNING: Never run the machine
without all the parts, including
the starting housing, securely in
place.
Because parts can fracture and
pose a danger of thrown objects,
leave repairs to the flywheel and
clutch to trained Servicing Dealers.

Spark Plug

This engine uses a NGK CMR7H with .02"
(0.5 mm) electrode gap (Fig. 12). Use an
exact replacement and replace every six
months or more frequently, if necessary.
WARNING:
ignition system with ignition wire
connector removed from spark
plug or with unseated spark plug,
since uncontained sparking may
cause a fire. A loose connection
between spark plug terminal and
ignition wire connector in the
boot may create arcing that could
ignite combustible fumes and
cause a fire.
18
MAINTENANCE
Never test the
Use only resistor type spark plugs of the
approved range.
Factors such as:
- too much oil in fuel mix;
- dirty air filter;
- unfavourable running conditions, e.g.
operating at part load;
may result in rapid deterioration of the spark
plug.

Muffler

WARNING! – This muffler is fitted
with a catalytic converter needed
for the engine to be in compliance
with the emissions requirements.
Never modify or remove the
catalytic converter: failure to do
so is a violation of law.
WARNING! – Mufflers fitted with
catalytic converters get very hot
during use and remain so for
some time after stopping. This
also applies at idle speed. Contact
can result in burns to the skin.
Remember the risk of fire!
CAUTION!
converter is damaged it should
be replaced. If the muffler is
frequently blocked, this can be a
sign that the performance of the
catalytic converter is impaired.
Spark Arresting Muffler (Fig. 13)
WARNING: A faulty or altered
spark arrester system screen can
create a fire hazard.
– If the catalytic