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53 І 56
Troubleshooting guide
Problem
Probable cause
Corrective Action
Unit wonʼt start or starts but will
not run.
Incorrect starting procedures.
Follow instructions in the User Manual.
Incorrect carburetor mixture adjustment
setting.
Have carburetor adjusted by an Authorized
Service Center.
Fouled spark plug.
Clean / gap or replace plug.
Fuel filter plugged.
Replace fuel filter.
Unit starts, but engine has low
power.
Incorrect lever position on choke.
Move to RUN position.
Dirty air filter.
Remove, clean and reinstall filter.
Incorrect carburetor mixture adjustment
setting.
Have carburetor adjusted by an Authorized
Service Center.
Engine hesitates.
Incorrect carburetor mixture adjustment
setting.
Have carburetor adjusted by an Authorized
Service Center.
No power under load.
Incorrectly gapped spark plug.
Clean / gap or replace plug.
Runs erratically.
Incorrect carburetor mixture adjustment
setting.
Have carburetor adjusted by an Authorized
Service Center.
Smokes excessively.
Incorrect fuel mixture.
Use properly mixed fuel (40:1 mixture).
Poor performance when
operated
Blunt chain
Loose chain
Sharpen or replace the chain
Tension the chain
Engine dies
Empty petrol tank
Fuel filter in the wrong position in the
tank
Fill up the petrol tank
Completely fill the petrol tank or or re-position
the fuel filter in the petrol tank
Insufficient chain lubrication
(the cutter rail and chain get hot)
Empty oil tank for the chain
Top up the oil tank for the chain
Oil lubrication openings moved
Clean the oil lubrication hole in the cutter bar
Clean the groove in the cutter bar
15. Admitted saw chain and chain bar
combination
Saw chain
Oregon 91P057X
Guide bar
Oregon 160SDEA041
