47
4
1
2
Fuel system
Dismantle the welch plug (1) and main jet
nozzle (2).
Check the valve and valve shafts for
wear.
Replace if necessary.
Assembly of the carburettor
Blow clean the carburetter housing.
Fit a new welch plug.
Fit a new main jet nozzle.
Drill a small hole in the welch plug (1) and
carefully break it loose with a pointed
object.
Press out the main jet nozzle (2) with a
suitable mandrel.
Dismantle the valve and valve shafts. If
these parts are worn the engine will not
idle correctly.
Always replace the valve and valve shafts
at the same time.
Assembly of the carburettor
● Blow clean all channels in the carbu-
rettor housing.
● Fit a new welch plug.
Use a suitable mandrel to ensure
complete tightness.
● Press in a new main jet nozzle. It
should lie level with the carburettor
housing.
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