Air Filter Maintenance; Spark Arrestor Maintenance - Ryobi 410r Operator's Manual

MAINTENANCE AND REPAIR INSTRUCTIONS

AIR FILTER MAINTENANCE

WARNING: To avoid serious personal injury,
always turn your unit off and allow it to cool
before you clean or service it.
Removing the Air Filter/Muffler Cover
1. Place the choke control in the PARTIAL choke position (B).
NOTE: The choke control must be in the PARTIAL choke
position (B) (Fig. 13) to remove the air filter/
muffler cover.
2. Remove the four (4) screws securing the air
filter/muffler cover (Fig. 13). Use a flat blade or # T20
Torx bit screwdriver.
3. Pull the cover from the engine. Do not force.
Choke Control
Screws
Fig. 13
Cleaning the Air Filter
Clean and re-oil the air filter every 10 hours of operation.
It is an important item to maintain. Failure to maintain the
air filter will VOID the warranty.
1. Remove the air filter/muffler cover. Refer to the
Removing the Air filter/Muffler Cover section.
2. Remove the air filter from inside the air filter/muffler
cover (Fig. 14).
3. Wash the filter in detergent and water (Fig. 14). Rinse
the filter thoroughly. Squeeze out excess water.
Allow it to dry completely.
4. Apply enough SAE 30 oil to lightly coat the filter (Fig. 15).
5. Squeeze the filter to spread and remove extra oil (Fig. 15).
6. Replace the air filter inside the muffler cover (Fig. 14).
NOTE: Operating the unit without the air filter and cover
assembly will VOID the warranty.
Reinstalling the Air filter/Muffler Cover
1. Place the air filter/muffler cover over the back of the
carburetor and muffler.
NOTE: The choke control must be in the PARTIAL choke
position (B) (Fig. 13) to remove the air filter/
muffler cover.
Air Filter
Partial Choke
Position (B)
Screws
2. Insert the four (4) screws into the holes in the air filter/

SPARK ARRESTOR MAINTENANCE

1. Remove the air filter/muffler cover. Refer to
2. Locate the muffler front and the two (2) bolts securing
3. Turn the muffler over to the back side and locate the
NOTE: If the exhaust gasket is torn or damaged, replace it
4. Using a small flatblade screwdriver, carefully pry up
5. Clean the spark arrestor with a wire brush. Replace it if it
6. Reinstall the spark arrestor by pressing it into the
7. Place the exhaust gasket against muffler's back side.
Inside Muffler
Cover
Fig. 14
Fig. 15
muffler cover (Fig. 13) and tighten. Use a flat blade or # T20
Torx bit screwdriver. Do not over tighten. Do not force.
Removing the Air Filter/Muffler Cover.
it to the engine (Fig. 16). Remove the two (2) bolts
using a flatblade screwdriver or 5/16-inch socket or
nut driver. Pull the muffler off of the engine.
exhaust gasket. Remove the muffler gasket from the
muffler (Fig. 16).
with a new gasket before you reassemble the muffler.
the spark arrestor from the recessed hole (Fig. 17).
Remove the spark arrestor from the muffler.
is damaged or if it can't be cleaned thoroughly (Fig. 17).
recessed hole on the muffler's back side. Make sure
it fits tightly against the muffler and is not raised up.
Align the gasket bolt holes with the bolt holes in the
muffler. While holding exhaust gasket in place, insert
the bolts into the muffler's front side (Fig. 16).
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