Fuel tap vacuum screwed with 2 screws 35mm RMS

MBK, Yamaha booster 50. MBK CW BOOSTER (ITA) - 50cc - years: 1992 - 1994 MBK CW BOOSTER SPIRIT (ITA) - 50cc - years: 1999 - 1999 MBK CW BOOSTER SPIRIT - 50cc - years: 1996 - 1998 MBK CW BOOSTER - 50cc - years: 1990 - 1991 MBK CW R BOOSTER ROAD (ITA) - 50cc - years: 1994 - 1995 MBK CW BOOSTER NAKED - 50cc - years: 2003 - 2003 MBK CW BOOSTER SPIRIT (ITA) - 50cc - years: 2000 - 2000 MBK CW L BOOSTER - 50cc - years: 2001 - 2003 MBK CW BOOSTER SPIRIT EURO2 - 50cc - years: 2002 - 2002 MBK CW BOOSTER - 50cc - years: 2001 - 2002 MBK CW BOOSTER SPIRIT EURO2 - 50cc - years: 2003 - 2003 MBK CW L BOOSTER SPIRIT - 50cc - years: 2003 - 2003 MBK CW SP BOOSTER SPIRIT EURO2 - 50cc - years: 2002 - 2002 YAMAHA YM BREEZE - 50cc - years: 1994 - 1995 YAMAHA CW SP BW'S ORIGINAL EURO2 - 50cc - years: 2002 - 2002 YAMAHA BW'S NAKED - 50cc - years: 2003 - 2003 YAMAHA BW'S ORIGINAL EURO2 - 50cc - years: 2003 - 2003 YAMAHA BW'S ORIGINAL - 50cc - years: 1997 - 1998 YAMAHA BW'S R - 50cc - years: 2001 - 2001 YAMAHA CW BW'S ORIGINAL EURO2 - 50cc - years: 2002 - 2002 YAMAHA BW'S ORIGINAL - 50cc - years: 1999 - 2002 YAMAHA CW L BW'S - 50cc - years: 2003 - 2003 MBK YE EVOLIS (ITA) - 50cc - years: 1992 - 1995 MBK YM FIZZ (ITA) - 50cc - years: 1994 - 1995