Partner B305 CBS Rev.7 - Manual (Page 14)

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WARNING:
Always stop unit and disconnect spark plug before performing all of the
recommended remedies below except remedies that require operation of the unit.
TROUBLESHOOTING TABLE
PROBLEM
Unit won’t start or
starts but will not run.
Unit starts, but engine
has low power.
Engine hesitates.
No power under load.
Runs erratically.
Smokes excessively.
PROBABLE CAUSE
Incorrect starting procedures.
Incorrect carburetor mixture
adjustment setting.
Fouled spark plug
Fuel filter plugged.
Incorrect lever position on choke.
Dirty spark arrester screen.
Dirty air filter.
Incorrectly gapped spark plug.
Incorrect carburetor mixture
adjustment setting.
Incorrect carburetor mixture
adjustment setting.
Incorrect carburetor mixture
adjustment setting.
Incorrect fuel mixture.
CORRECTIVE ACTION
Follow instructions in the User Manual.
Have carburetor adjusted by an Authorized
Service Center.
Clean / gap or replace plug.
Replace fuel filter.
Move to RUN position.
Replace spark arrester screen.
Remove, clean and reinstall filter.
Have carburetor adjusted by an Authorized
Service Center.
Have carburetor adjusted by an Authorized
Service Center.
Have carburetor adjusted by an Authorized
Service Center.
Clean / gap or replace plug.
Use properly mixed fuel (40:1 mixture).