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12. Reinstall the rocker arm cover using a new gasket.
Torque the screw to 2.2-3.4 N,m (20-30 inolb).
NOTE: A rocker arm cover gasket, Part # 182099 can be
purchased from your local authorized dealer.
13. Reinstall the engine cover. Check alignment of the
cover before tightening the screws. Tighten screws.
14. Replace the muffler cover. Slip the long tabs on the
muffler cover into the engine cover, Slide the notches
on the side of the muffler cover over the tabs on the
engine cover and snap into :)lace(Fig. 49, Pg, 23).
15. Check the spark plug and reinstall. SeeReplacing the
Spark Plug.
16. Replace the spark plug wire.
REPLACING THE SPARK PLUG
Use only genuine Ryobi spark plugs. The correct air gap
is 0.655 mm (0,025 in,), Remove the plug after every 50
hours of operation and check its condition.
1. Stop the engine and allow it to cool. Grasp the plug
wire firmly and pull the cap from the spark plug.
2. Clean dirt from around the spark plug. Remove the
spark plug from the cylinder head by turning a 5/8 in,
socket counterclockwise.
3. Replace cracked, fouled or dirty spark plug. Set the
air gap at 0.655 mm (0.025 in.) using a feeler gauge
(Fig. 55).
0.655 mm
(0.025in.)
Fig. 55
CAUTION: Do not sand blast,scrape, or clean
electrodes; Grit in the engine could damage the
cylinder.
4. Install a correctly gaped spark plug in the cylinder
head. Tighten by turning the 5/8 in. socket clockwise
until snug.
If using a torque wrench torque to;
12.3-13.5 N,m (110-120 in,,Ib.).
Do not over tighten.
NOTE: A replacement spark plug Part # 180852 can be
purchased from your local authorized dealer.
SPARK ARRESTOR MAINTENANCE
1. Remove the muffler cover. See Rocker Arm
Clearance. Pg. 23.
2. With a flat blade screwdriver or Torx T20 bit. remove
the screw attaching the spark arrestor cover to the
muffler (Fig. 56).
Muffler
Spark Arrestor Screen
Slot
Tab Screw
/
Spark Arrestor Cover
Fig. 56
3. Pull the tab on the spark arrestor cover out of the
muffler. Remove the spark arrestor cover.
4. Remove the spark arrestor screen from the spark
arrestor cover.
5. Clean the spark arrestor screen with a wire brush, or
replace,
6. Reinstall the spark arrestor screen, spark arrestor
cover, and screw.
NOTE: A replacement spark arrestor screen Part #
180890 can be purchased from your local
authorized dealer.
ACCESSORIES/REPLACEMENT PARTS
4-Cycle Oil ............................. 181786
Oil Fill Plug / Dipstick ..................... 182378
Spark Plug .............................. 180852
Spark Arrestor Screen ..................... 180890
Replacement Line ........................ 612454
Replacement Line Cartridge ................ 147345
Inner Reel Spring ........................ 610636
Outer Spool ............................. 683301
Inner Reel .............................. ! 47495
Bump Knob TM ........................... 180814
Fuel Cap ............................... 181083
Shoulder Harness ........................ 682075
Quick-Link Coupler ...................... 181616
25
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