Cleaning The Exhaust Port, Muf- Fler, And Spark Arrestor; Fuel Filter; Spark Plug Replacement; Residual Risks - Ryobi RBJ254N Original Instructions Manual

1. Press the air filter cover tab to open the air
filter cover.
2. Remove the cover.
3. Lift the edge of the air filter carefully and
peel it out.
4. Clean the air filter with a brush.
5. To reinstall the air filter cover, insert the
tabs into the notches and lock into place.
NOTE: Make sure the filter is seated properly
inside the cover. Installing the filter incorrectly
will allow dirt to enter the engine, causing
rapid engine wear.
CLEANING THE EXHAUST PORT, MUF-
FLER, AND SPARK ARRESTOR
NOTE: Depending on the type of fuel used, the
type and amount of lubricant used, and/or your
operating conditions, the exhaust port, muffler,
and/or spark arrestor screen may become
blocked with carbon deposits. If you notice a
power loss with your petrol-powered product,
you may need to remove these deposits to
restore performance. We highly recommend
that only qualified service technicians perform
this service.
The spark arrestor must be cleaned or replaced
every 50 hours or yearly to ensure proper
performance of your product. Spark arrestors
may be in different locations depending on the
model purchased. Please contact your nearest
service dealer for the location of the spark
arrestor for your model.
WARNING
To avoid a fire hazard, never run the blower
without the spark arrestor in place.
FUEL CAP
WARNING
A leaking fuel cap is a fire hazard and must
be replaced immediately.
The fuel cap contains a sealing gasket and a
check valve to allow air in. A clogged check
valve will cause poor engine performance.
If performance improves when the fuel cap
is loosened, the check valve may be faulty.
Replace fuel cap if required.
When refitting the fuel cap ensure it is not
cross-threaded, otherwise it will leak.
6

FUEL FILTER

The fuel supplied to the engine is passed
through a filter to remove any contaminants
from entering the engine. Contaminants in the
fuel can cause poor performance and damage
to the engine.
The fuel filter is a non-serviceable item and, if
needed, should be replaced by an authorised
service centre.

SPARK PLUG REPLACEMENT

The product's engine uses a Champion RCJ6Y
spark plug. Replace with a recommended every
25 hours or annually.
1. Remove the spark plug boot.
2. Loosen the spark plug by turning it counter-
clockwise with a socket.
3. Remove the spark plug.
4. Inspect the new spark plug. The spark
plug must be properly gapped and free of
deposits in order to ensure proper engine
operation. The correct gap is 0.025 in.
(0.64 mm). To widen gap, if necessary,
carefully bend the ground (top) electrode.
To lessen gap, gently tap ground electrode
on a hard surface.
5. Hand thread the new spark plug into the
cylinder, turning it clockwise.
6. Tighten with a socket. Torque to 216 in.lb.
(24.40 Nm) minimum, 264 in.lb. (29.82
Nm) maximum. Do not over-tighten.
WARNING
Be careful not to cross-thread the spark
plug. Cross-threading will seriously damage
the product.

RESIDUAL RISKS

Even when the product is used as prescribed,
it is still impossible to completely eliminate
certain residual risk factors. The following
hazards may arise in use and the operator
should pay special attention to avoid the
following:
■ Injury caused by vibration.
Always use the right tool for the job. Use
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designated handles and restrict working
time and exposure.
■ Hearing damage caused by exposure to
noise.
Wear ear protection and limit exposure.
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