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GROM/MSX125 Carburetor Conversion Kit & YD-MJN Carburetor

GROM Carburetor conversion KIT

Carburetor conversion kit was developed to bring real engine performance and potential of GROM/MSX125. It gives not only the power but also the possibility of tuning.

GROM/MSX125 Carburetor Conversion Kit

GROM Carburetor conversion KIT

GROM Carburetor conversion KIT

<Feature>

Installation is easy. Just remove STD throttle body and air cleaner box, and then install Yoshimura YD-MJN Carburetor and the Carburetor conversion kit.
Note: STD fuel pump, ECU, wiring harness are used. Also STD throttle switches (engine starter, kill switch etc.) and STD meter panel (fuel gauge, rev & speed indication etc.) are possible to use.

Both YD-MJN24 and YD-MJN28 carburetors are applicable. Using spacer in the kit, carburetor can be mounted either left or right side.
* YD-MJN24 is recommended to use when cylinder & cylinder head are STD.
* YD-MJN28 is recommended to use when cylinder head is modified or porting is done.

<Note>

The setting of the YD-MJN Carburetors are done with Yoshimura R-77S Exhaust system and Yoshimura ST-1 Camshaft.

<Kit contents>

GROM Carburetor conversion KIT

  • (1) TPS Unit & Throttle Cables

    The sensor of TPS Unit sends signal of throttle position to ECU, and it makes possible to get best ignition timing of STD ECU.
    To use STD throttle holder, necessary items such as Throttle Cables or Blind Plug are included.

  • (2) Ignition module

    It eliminates FI Error warning.
    Fuel gauge, engine rev and speed at STD meter panel are functional.

  • (3) Fuel cock

    The fuel cock adjusts fuel supply.

  • (4) Shroud bracket

    Bracket is used when STD air cleaner box is removed and hold shroud in the same position.
    It makes possible to mount Universal Oil Catch Tank Kit (optional item).

<Note>

It is recommended to change final ratio.

STD 15:34 >>> Yoshimura 16:34

Recommended item: SUNSTAR Drive sprocket (Part No. 103-16) [Note: STD drive sprocket plate has to be used.]

DescriptionApplicationPart No.
GROM/MSX125 Carburetor Conversion Kit GROM/MSX125 (-2014) 792C40A-0000

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GROM/MSX125 Carburetor

YD-MJN24/28 Carburetor Set for GROM/MSX125

YD-MJN24/28 Carburetor Set for GROM/MSX125

  • YD-MJN24: Part No. 792-40A-4110
  • YD-MJN28: Part No. 792-40A-8110

Product Site

YD-MJN24/28 Carburetor for GROM/MSX125 (without manifold)

YD-MJN24/28 Carburetor for GROM/MSX125 (without manifold)

  • YD-MJN24: Part No. 702-40A-4110
  • YD-MJN28: Part No. 702-40A-8110

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Manihold Kit

Manihold Kit

  • YD-MJN24: Part No. 704-40A-0024
  • YD-MJN28: Part No. 704-40A-0028

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