TROUBLESHOOTING

 

 

 

PROBLEM

CAUSE

REMEDY

 

 

 

Engine will not start.

No spark.

Check spark. Remove spark plug. Reattach the spark plug cap and

 

 

lay spark plug on metal cylinder. Pull the starter rope and watch

 

 

for spark at spark plug tip. If there is no spark, repeat test with a

 

 

new spark plug.

 

No fuel.

Push primer bulb until bulb is full of fuel. If bulb does not fill, primary

 

 

fuel delivery system is blocked. Contact a servicing dealer. If primer

 

 

bulb fills, engine may be flooded, proceed to next item.

 

Engine is flooded.

Pull starter three times with choke lever at “RUN”. If engine does

 

 

not start, move choke lever to “START” and repeat normal starting

 

 

procedure. If engine still fails to start, repeat procedure with a new

 

 

spark plug.

 

Starter rope pulls harder

Contact a servicing dealer.

 

now than when new.

 

 

 

 

Engine starts but will

Engine requires approxi-

Allow engine to completely warm up. If engine does not accelerate

not accelerate.

mately three minutes to

after three minutes, contact a servicing dealer.

 

warm up.

 

 

 

 

Engine starts but will

Carburetor requires

Contact a servicing dealer.

only run at high speed

adjustment.

 

at half choke.

 

 

 

 

 

Engine does not reach

Check oil fuel mixture.

Use fresh fuel and the correct 2-cycle oil mix.

full speed and emits

Air filter is dirty.

Clean air filter. Refer to “Replacing and Cleaning Air Filter” earlier

excessive smoke.

 

in this manual.

 

 

 

Spark arrestor screen is

Contact a servicing dealer.

 

dirty.

 

 

 

 

Engine starts, runs,

Idle speed screw on

Turn idle speed screw clockwise to increase idle speed.

and accelerates but

carburetor

 

will not idle.

 

 

 

 

 

Bar and chain running

Check chain tension for

Tension chain. Refer to “Chain Tension” earlier in this manual.

hot and smoking.

overtight condition

 

 

Chain oil tank empty

Check oil tank.

 

 

 

Motor runs, but chain

Chain tension too tight.

Retension chain. Refer to “Chain Tension” earlier in this manual.

is not rotating.

Check guide bar and chain

Refer to “Replacing the Bar and Chain” earlier in this manual.

 

 

assembly.

 

 

Check guide bar and chain

Inspect guide bar and chain for damage.

 

for damage.

 

 

 

 

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Ryobi RY52004 manual Troubleshooting, Problem Cause Remedy