grand dink 250 Workshop-manual : Page 150

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          13. FUEL SYSTEM/CARBURETOR/
    FUEL PUMP/ FUEL TANK                                                   GRAND DINK 250


 Remove the two vacuum chamber cover                            Screws
 screws and the cover.




                                                        Vacuum Chamber Cover


                                                            Spring
 Remove the compression spring and vacuum
 piston.




                                                         Vacuum Piston


                                                   Diaphragm                Vacuum Piston
 Remove the needle holder, spring and jet
 needle from the piston.
 · Be careful not to damage the vacuum
     piston diaphragm.


 VACUUM PISTON INSPECTION
 Inspect the vacuum piston and jet needle for
 wear or damage.
 Inspect the diaphragm for deterioration and
 tears.


                                                Needle Holder            Jet Needle


                                                                                        13-8