This high quality rubber slide diaphragm will fit ALL Ducati 900SS and M900's and Yamaha TDM850's that utilize the Mikuni BST38 and BDST38 carburetors.  The rubber diaphragm is an original Mikuni component which is manufactured to higher tolerances that ensure an exact fit and proper operation every time.  Genuine Mikuni components also last longer and remain pliable longer than any aftermarket product available.  All Mikuni rubber diaphragms are guaranteed for an exact fit and proper operation.

This rubber bsdiaphragm fits ALL of the following carburetors:

• Mikuni BST40-251
• Mikuni BST40-233
• Mikuni BST40-225
• Mikuni BST38
• Mikuni BDST38-B67

The rubber diaphragm fits the following models in addition to many others:

• Ducati M750 (BST38 and BDST38)
  
• Ducati M900 (BST38 and BDST38)
• Ducati 750SS (BST38 and BDST38)
• Ducati 900SS (BST38 and BDST38)
• 1998 - 2000 KTM 400 SX (BST40-225)
• 1998 - 2007 KTM 640 LC4 (BST40-225)
• 2004 - 2005 Polaris ATP 500 4x4 (BST40-251)
• 2001 - 2012 Polaris Scrambler 500 4x4 (BST40-251)
• 2003 - 2005 Polaris Sportsman 500 4x4 (BST40-251)
• 2010 - 2013 Polaris Sportsman 500 4x4 (BST40-251)
• 2012 - 2013 Polaris Sportsman Forest 500 4x4 (BST40-251)
• 2002 Polaris Scrambler 500 2x4 (BST40-251)
• 2007 - 2009 Polaris Scrambler 500 2x4 (BST40-251)
• 2012 - 2013 Polaris Sportsman Touring 500 4x4 (BST40-251)
• 1996 - 2017 Suzuki DR650 SE (BST40-233)
• Yamaha TDM850, all years (BDST38-B67)
  

Do you need jets, gaskets, or other o-rings?  We also offer ALL Mikuni rebuild kits and the correct jetting for each application, please inquire with any questions or for help with selection.