Honda VTR1000F (1998-2003) [97/377] Fuel system

FUEL SYSTEM VACUUM CHAMBER is the compr ession spring is very long it will jump out of the carburetor when the cover is removed Remove the three screws and the vacuum chamber cover Remove the compression spring and diaphragm vacuum piston from the carburetor body Be careful not to damage the diaphragm Screw the vacuum chamber cover 4 mrn screw into the jet needle holder Pull the screw and remove the jet needle holder from the vacuum piston CAUTION Do not remove the jet needle holder by pushing the jet needle Remove the washer and 0 ring from the jet needle holder Remove the spring jet needle and washer from the vacuum piston Air can leak out of the vacuum chamber if the diaphragm is damaged in any way even if only a pin hole Check the jet needle for stepped wear Check the vacuum piston for wear or damage Check the diaphragm for pin holes deterioration or damage VACUUM CHAMBER COVER