Ryobi 4 Cycle S430 Manual

7 — English
ASSEMBLY
UNPACKING
This product requires assembly.
 Carefully remove the product and any accessories from 
the box. Make sure that all items listed in the packing list 
are included.
WARNING: 
Do not use this product if any parts on the packing list are 
already assembled to your product when you unpack it. 
Parts on this list are not assembled to the product by the 
manufacturer and require customer installation. Use of a 
product that may have been improperly assembled could 
result in...

8 — English
 The secondary hole in the attachment shaft can be used 
for hanging purposes as well.
ATTACHING THE FRONT HANDLE
See Figure 5.
  Remove wing nut, washer, and bolt from the front 
handle.
   Install the front handle onto the top side of the drive shaft 
housing in the area indicated by the label.
  NOTE: The open side of the handle should face the 
operator. 
   Place the bolt through the front handle.
 NOTE: The hex bolt head fits inside the hex recess molded 
into one side of the...

9 — English
OPERATION
WARNING:
Always shut off engine before fueling. Never add fuel to 
a machine with a running or hot engine. Move at least 
30 ft. from refueling site before starting engine. Do not 
smoke and stay away from open flames and sparks. 
Failure to safely handle fuel could result in serious per-
sonal injury.
OXYGENATED FUELS
DO NOT USE E85 FUEL. IT WILL VOID YOUR 
WARRANTY.
NOTE: Fuel system damage or performance problems re-
sulting from the use of an oxygenated fuel containing more...

10 — English
OPERATION
TO ADVANCE THE CUTTING LINE (REEL EASY 
STRING HEAD)
Line advance is controlled by tapping the string head on 
grass while running engine at full throttle.
 Run engine at full throttle.
 Tap the knob on ground to advance line. The line advances 
each time the knob is tapped. Do not hold the knob on 
the ground.
NOTE: The line trimming cut-off blade on the grass deflector 
will cut the line to the correct length.
NOTE: If the line is worn too short you may not be able to 
advance...

11 — English
MAINTENANCE
 Insert the new spool into the string head. 
 NOTE: Make sure the arrows on the spool are aligned 
with the eyelets in the string head housing. Push down 
and hold the spool and housing together while complet-
ing the installation.
 Reinstall the spool retainer to secure. 
 To install the spool retainer: 
  Turn the spool retainer clockwise for CS26. 
 Turn the spool retainer counterclockwise for SS26. 
 Install line as described in LINE REPLACEMENT.
LINE REPLACEMENT
See...

12 — English
MAINTENANCE
	Insert the lines into the eyelets located on the sides of the 
string head. Line should be pushed in until approximately  
1 in. protrudes from the holes on the top of the string head.
	Remove old line by pulling it from the holes located on 
the top of the string head.
CLEANING THE EXHAUST PORT AND 
MUFFLER
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...

13 — English
MAINTENANCE
ADJUSTING CAMSHAFT-TO-ROCKER ARM 
 CLEARANCE
See Figures 27 - 30.
Inspect the camshaft-to-rocker arm clearance after every 
25  hours of operation. This should be done in a clean, dust-
free environment.
NOTE: This procedure requires partial disassembly of the 
engine. If you are unsure if you are qualified to perform this 
operation, take the unit to an authorized service center. 
 Stop the engine and disconnect the spark plug wire. Allow 
the engine to cool completely before...

14 — English
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICE DEALER.
TROUBLESHOOTING
PROBLEMPOSSIBLE CAUSESOLUTION
Engine will not startNo spark.
 
 
No fuel.
 
 
 
 
Engine is flooded.
Clean or replace spark plug. Reset spark plug gap. 
Refer to Spark Plug Replacement earlier in this 
manual.
Push primer bulb until bulb is full of fuel. If bulb does 
not fill, primary fuel delivery system is blocked. Con-
tact a service dealer. If primer bulb fills, engine may 
be flooded,...

15 — English
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICE DEALER.
TROUBLESHOOTING
WARRANTY
EMISSIONS MAINTENANCE SCHEDULE AND  WARRANTED PARTS LIST
Emissions Parts  Inspect Before   Clean Every Replace Every   Replace Every 
  Each Use 5 Hours 25 Hours or Yearly  50 Hours or Yearly
AIR FILTER ASSY
 INCLUDES:
 FILTER ........................................................................\�........X
ENGINE LUBRICANT ..................X...

16 — English
WARRANTY
LIMITED WARRANTY STATEMENT
Techtronic Industries North America, Inc., warrants to the 
original retail purchaser that this RYOBI® brand outdoor 
product is free from defect in material and workmanship 
and agrees to repair or replace, at Techtronic Industries 
North America, Inc.’s, discretion, any defective product 
free of charge within these time periods from the date of 
purchase.
 Three years if the product is used for personal, family 
or household use;
 90 days, if used...