Overhauling And Checking The Carburetor - Volvo Penta 230 Workshop Manual

Overhauling and checking the
carburetor
1. Remove the carburetor from the intake manifold.
Notice the positioning of the plate in order to install it
in the same way. Take care of the plate. Remove
the screws (1) 4 pcs, and remove the top cover of
the carburetor.
NOTE! The carburetor on the model 230 (AQ131) is
equipped with a full speed jet (A), lower picture. This
jet is pressed into the top cover of the carburetor
and does not need to replaced unless damaged.
2. Remove the gasket (1) and needle valve (2).
Check to make sure that the needle valve does not
jam or that it's worn (not sealing). Replace if neces-
sary.
3. Lift out the float and check it for leakage. Should
the float leak, the float level will not be correct. The
weight of the float should be 7,3 grams (0,26 oz's).
Remove the emulsion jet (1) and the acceleration jet
(2).
NOTE! Don't forget the gasket! Check and blow
clean with compressed air. Replace worn or dam-
aged parts if necessary!
4. Remove the idle jet (1) and the main jet holder
(2). Remove the jet from its holder. Clean the jets
with compressed air. Replace if necessary. Remove
the mixture screw (3) and blow the channel clean.
The screw (4) is locking the venturi (5).
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