BAR AND CHAIN COMBINATIONS

Chain specifications: 0.0325 pitch, .05 in. chain gauge

 

 

Length of Bar

Guide Bar Part Number

Chain Part Number

Drive Links

20 in.

310629001

900920027

78 link

18 in.

310628001

901430001

72 link

TROUBLESHOOTING

Problem

Possible Cause

Solution

 

Engine will not

No spark.

Clean or replace spark plug. Reset spark plug gap. Refer

 

start. [Make sure

 

to Spark Plug Replacement earlier in this manual.

 

ignition switch is in

Engine is flooded.

With the ignition switch OFF, remove spark plug. Move

 

the RUN (  l  ) posi-

 

tion.]

 

 

choke lever to RUN position (pushed in completely) and

 

 

 

pull starter cord 15 to 20 times. This will clear excess

 

 

 

 

 

 

 

 

fuel from engine. Clean and reinstall spark plug. Set igni-

 

 

 

 

tion switch to RUN (  l  ) position. Push and fully release

 

 

 

 

primer bulb 7 times. Pull starter three times with choke

 

 

 

 

lever at RUN. If engine does not start, move choke lever

 

 

 

 

to FULL CHOKE and repeat normal starting procedure.

 

 

 

 

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

 

 

 

 

spark plug.

 

 

 

 

 

Engine starts but

Carburetor requires

Contact an authorized service center for carburetor

 

will not accelerate

“L” (Low Jet)

adjustment.

 

properly.

adjustment.

 

 

 

 

 

 

Engine starts, then

Carburetor requires

Contact an authorized service center for carburetor

 

dies.

 

“L” (Low Jet)

adjustment.

 

 

 

adjustment.

 

 

 

 

 

 

Engine starts but

Carburetor requires

Contact an authorized service center for carburetor

 

will not run proper-

“H” (High Jet)

adjustment.

 

ly at high speed.

adjustment.

 

 

 

 

 

 

Engine does not

Lubricant/fuel

Use fresh fuel and the correct 2-cycle lubricant mix

 

reach

full speed

mixture incorrect.

ratio.

 

and/or

emits ex-

Air filter is dirty.

Clean air filter. Refer to Cleaning the Air Filter in the

 

cessive smoke.

 

Maintenance section of this manual.

 

 

 

 

 

 

 

Spark arrestor

Clean spark arrestor screen. Refer to Inspecting/Clean-

 

 

 

screen is dirty.

ing the Spark Arrestor Screen in the Maintenance sec-

 

 

 

 

tion of this manual.

 

 

 

Carburetor requires

Contact an authorized service center for carburetor

 

 

 

“H” (High Jet)

adjustment.

 

 

 

adjustment.

 

 

 

 

 

 

 

Page 38 — English

Page 38
Image 38
Ryobi RY10520, RY10518 manuel dutilisation BAR and Chain Combinations, Troubleshooting, RUN l posi

RY10518, RY10520 specifications

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