The Mikuni genuine metal tip needle valve assemblies are the best replacement parts for your leaking carburetor.  The N149.040 metal tip needle valve assemblies fit the RS34, RS36, RS38, and RS40 high performance flat slide carburetors.  The set includes a metal tip needle, press in type needle valve seat, and sealing o-ring.  Available in various sizes from #2.0 to #2.8 in order to match up to the fuel flow characteristics of your engine. 


Some, but not all of the possible applications include the following: 

• Kawasaki KZ1000 (1981-1985), #2.5
  
• KZ1100 (1981-1985), #2.5
  
• Kawasaki OEM reference 16030-1016, #2.5
• Suzuki GS750E (1980-1982), #2.0
• Suzuki GS850G (1980-1983), #2.0
• Suzuki OEM reference 13370-11400, #2.0
  
• Suzuki OEM reference 13370-44500, #2.0
• Yamaha XS400 Maxim, #2.0
  
• Yamaha XS400 Seca, #2.0
• Yamaha OEM reference 11H-14107-20-00, #2.0
  

These needle valve assemblies include the sealing o-ring, no one else includes the sealing o-rings!


Please feel free to contact us with any additional questions or requests, we are available by direct line, IM, or email. We are available for tuning and setup questions as well as continuing product support after the sale.