Troubleshooting - Ryobi RFT254N Operator's Manual

TROUBLESHOOTING

Problem
Engine will not start.
Engine does not reach full speed
and emits excessive smoke.
Engine starts, runs, and
accelerates but will not idle
Retaining cap hard to turn.
Grass wraps around the
trimmer head assembly and the
attachment shaft.
Lubricant drips from silencer.
ENGLISH
Possible cause
1. Switch set to the "O" (OFF) position.
2. No spark
3. No fuel.
4. Flooded engine.
5. Starter rope pulls harder now than
when new.
6. Old fuel.
1. Check lubricant fuel mixture.
2. Air filter is dirty.
3. Spark arrestor screen is dirty.
Idle speed screw on carburetor needs
adjustment.
Screw threads are dirty or damaged.
1. Cutting tall grass at ground level.
2. Operating the product at partial
throttle.
1. Operating the product at partial
throttle.
2. Check lubricant/fuel mixture.
3. Air filter is dirty.
Solution
1. Set switch to the "I" (ON) position.
2. The spark plug may be damaged. Remove it and
check for dirt and cracks. Replace with a new spark plug
if needed.
3. Push primer bulb until the bulb is full of fuel. If the bulb
does not fill, the primary fuel delivery system is blocked.
If the primer bulb fills, the engine may be flooded. (See
next item.)
4. Ensure the on/off switch is in the "O" (off) position.
Remove the spark plug from the engine and the spark
plug boot. Turn the product so that the spark plug hole is
aimed at the ground. Make sure the choke lever is set to
and pull the starter cord 10 to 14 times. This clears
excess fuel from the engine. Clean and reinstall the spark
plug. With the throttle trigger fully depressed, pull the
starter cord 3 times. If the engine does not start, set the
choke lever to
If the engine still fails to start, repeat the procedure with
a new spark plug.
5. Contact an authorised service dealer.
6. Only use fresh fuel mixed with recommended oil. Fuel
over 30 days old may prevent the unit from starting.
1. Use fresh fuel and the correct 2-stroke lubricant mix.
2. Clean the air filter according to the instructions in the
Maintenance section.
3. Contact an authorised service dealer.
Turn idle speed screw clockwise to increase idle speed.
See Figure 15.
Clean the threads and lubricate with grease.
If this does not solve the problem, replace the retaining
cap.
1. Cut tall grass from the top down.
2. Operate the product at full throttle.
1. Operate the product at full throttle.
2. Use fresh fuel and the correct 2-stroke lubricant mix.
3. Clean the air filter according to the instructions in the
Maintenance section.
9
and follow normal starting instructions.