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IF THESE SOLUTIONS
DO NOT
SOLVE
THE PROBLEM CONTACT
YOUR AUTHORIZED SERVICE
DEALER.
IF
THESE
SOLUTIONS
DO
NOT
SOLVE
THE
PROBLEM
CONTACT
YOUR
AUTHORIZED
SERVICE
DEALER'
PROBLEM
POSSIBLE CAUSE
SOLUTION
PROBLEM
Engine
will
not
start
Engine
does
not reach
full
speed
and
emits
excesslve
SMOKE
Engine
starts,
runs,
and
ac-
celerates
but
will
not
idle
String
will
not advance
POSSIBLE
CAUSE
2.
No fuel.
3.
Engine
is flooded
1.
Incorrect
oil/fuel
mixture.
2. Air
filter
is
dirty.
3.
Spark
arrestor
screen
is dirty
4. Spark
plug
fouled.
1. ldle
speed
screw
on
carburetor
needs
adjustment.
SOLUTION
1. Check
spark.
Remove
spark
plug.
Reattac
the
spark
plug
cap
and
lay
spark
plug
on
Soool retainer
hard to turn
1. Screw threads are
dirty or
damaged.
1. Clean
threads
and
lubricate with
grease
- if no
improvement, replace the spool retainer.
cylinder.
Pull
the
rope
and
watch
for
spark
spark
plug
tip.
lf there
is no
spark,
repeat
tr
Grass
wraps around
driveshaft
housing and
string
head
1. Cutting
tall
grass
at
ground
tevet.
2. Operating
trimmer at
part
throttle.
1.
Cut
tall
grass
from the top down to
prevent
wrapping.
2. Operate trimmer at full throttle.
3.
4.
5.
String
is welded
to
itself.
Not enough
string
on spool.
String
is worn
too shoft.
Sking
is
tangled
on
spool.
Engine
speed
is too
slow.
wiih
a
new
sparK
Plug.
2.
Push
primer
bulb
until
bulb
is full
of
fuel'
lf
does
not
fill,
primary fuel
delivery
system
blocked.
Contact
a
service
dealer'
lf
pri
bulb
fills,
engine
may
be
flooded,
proceed
next
item
3. Setthe
start
leverto
the START
position'
the trigger
and
pull
the
rope
repeatedly
until
engine
starts
and
runs.
NOTE:
Depending
on
the severity
of
the
this may
require
numerous
pulls
of
the
rope'
Figure
23.
1. Use
fresh
fuel
and
the
correct
2-cycle
oil
(50:1).
2. Clean
airfilter.
Referto
Replacing
and
Air
Filter
earlier
in
this
manual.
3. Contact
a servicing
dealer.
4. Clean
or
replace
spark
plug. Reset
spark
gap.
Referto
Spark
Plug
Replacement
in this
manual.
1.
Turn
idle speed
screw
clockwise
to increase
speed.
See
Figure
31.
1. Lubricate
string
with silicone
spray
2,
Install
more
string.
Referto String
earlier
in
this
manual.
3.
Pull
strings
while
alternately
pressing
down
and
releasing
sPool
retainer.
4.
Remove
string
from
spool
and
rewind.
Refer
String
Replacement
earlier
in this
manual.
5.
Advance
string
at full
throttle.
THIS PRODUCTWAS
MANUFACTURED WITH A CATALYST
MUFFLER
Congratulations!
You have made an
investment toward
protecting
the environment.
In order to maintain this
product's
original emission level,
please
refer
to the maintenance section below.
CALL US
FIRST
For any
questions
about operating or maintaining
your
product,
call the Ryobio Help Line!
Your
produci
has been fully tested
prior
to
shipment
to ensure
your
complete satisfaction.
EMISSIONS MAINTENANCE SCHEDULE
AND WARRANTED PARTS LIST
Emissions Parts Inspect Before Clean
Every Replace
Clean Every Replace Every
Each
Use
5 Hours
Every 25 Hours 25 Hours 50
Hours
or Yeafly or
CATALYT|C MUFFLER ASSEMBLY......
............................ X
AIR FILTER ASSY
includes:
Filter ..................
....................
X............................. X
SPARK SCREEN
.........................".......X
CARBURETOR
ASSY
includes:
Heat Dam
Gaskets
FUEL TANK ASSY
includes:
Fuel Lines........................ X
Fuel Cao.......................... X
Fuel Filter
IGNITION ASSY
includes:
Spark
P1u9.........
.........................
X
ALL EMISSIONS-RELATED
PARTS ARE WARRANTED
FOR TWO
YEARS OR
FOR THE PERIOD OF TIME PRIOR TO
THE PARTS FIRST SCHEDULED
REPLACEMENT
WHICHEVER
COMES
FIRST.