Mikuni TM38-157 carburetor.


Genuine Mikuni, high quality part. 
This early TMX series carburetor features a flat slide design in a smooth bore venturi with powerjet to provide improved throttle response and wider powerband. It is lightweight and has a compact body. The powerjet adds extra fuel from half-open throttle and up (can be disabled).  The TMX38 works best on 250cc and up 2-strokes, and is a great performance upgrade to many OEM carbs.


Settings:

  • #20 pilot jet
  • #410 main jet
  • 6EJ12-56 jet needle
  • R-6 (633 series) needle jet
  • 3.5 throttle valve
  • 3.5 float valve seat kit
  • #50 powerjet jet.
Dimensions:
  • OD front: 44mm.
  • OD back: 62mm.
  • total length: 76mm.
  • total height: 164mm.
 

Complete as pictured.

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