Ryobi RY70101A - Manual (Page 14)

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PROBLEM PROBLEM PROBLEM PROBLEM PROBLEM POSSIBLE CAUSE POSSIBLE CAUSE POSSIBLE CAUSE POSSIBLE CAUSE POSSIBLE CAUSE SOLUTION SOLUTION SOLUTION SOLUTION SOLUTION
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM, CONTACT YOUR AUTHORISED SERVICE DEALER.
TROUBLESHOOTING
1. Check spark. Remove sparking plug. Reattach
the sparking plug cap and lay sparking plug on
metal cylinder. Pull the starter rope and watch
for spark at sparking plug tip. If there is no
spark, repeat test with a new sparking plug.
2. Push primer bulb until bulb is full of fuel. If
bulb does not fill, primary fuel delivery system
is blocked. Contact a service dealer. If primer
bulb fills, engine may be flooded (see
next item).
3. Remove sparking plug, turn trimmer so
sparking plug hole is aimed at the ground.
Move choke lever to “RUN” and pull starter
cord 10 to 15 times. This will clear excess fuel
from engine. Clean and reinstall sparking plug.
Pull starter three times with choke lever at
“RUN”. If engine does not start, move choke
lever to “CHOKE” and repeat normal starting
procedure. If engine still fails to start, repeat
procedure with a new sparking plug.
4. Contact a service dealer.
Turn “H” needle anticlockwise 1/16 turn. If “L”
low needle cannot be turned anticlockwise, do not
force plastic limiter caps. Contact a service
dealer. See Figure 18.
Turn “H” needle anticlockwise 1/16 turn. If “H”
high needle cannot be turned anticlockwise, do
not force plastic limiter caps. Contact a service
dealer. See Figure 18.
1. Use fresh fuel and the correct 2-cycle oil mix.
2. Clean the air filter. Refer to “Replacing and
Cleaning the Air Filter ” earlier in this manual.
3. Turn “H” needle clockwise 1/16 - 1/8 turn.
See Figure 18.
Turn idle speed screw clockwise to increase
idle speed.
1. Lubricate with silicone spray.
2. Install more string. Refer to “String Replace-
ment” earlier in this manual.
3. Pull strings while alternately pressing down on
and releasing spool retainer.
4. Remove string from spool and rewind. Refer to
“String Replacement” earlier in this manual.
5. Advance string at full throttle.
Engine will not start:
Engine starts but will not
accelerate:
Engine starts but will only
run at high speed at half
choke:
Engine does not reach full
speed and emits excessive
smoke:
Engine starts, runs, and
accelerates but will not idle:
String will not advance:
1. No spark.
2. No fuel.
3. Flooded engine.
4. Starter rope pulls harder now than
when new.
Carburettor requires adjustment.
Carburettor requires adjustment.
1. Check oil fuel mixture.
2. Air filter dirty.
3. Carburettor requires adjustment.
Carburettor requires adjustment.
1. String welded to itself.
2. Not enough string on spool.
3. String worn too short.
4. String tangled on spool.
5. Engine speed too slow.