Naraku

Naraku V.3 18.5mm Carburetor - 50cc Scooters & ATVs

SKU 137-83
$98.00 Sold out
Shipping calculated at checkout.
Description

This Naraku V.3 carburetor is the 18.5mm upgrade or replacement for compatible scooters, mopeds and ATVs, including the Yamaha YFZ 50. Enjoy reliable cold starts from the electric choke and crisp throttle response from the accelerator pump, with a durable die-cast aluminum body built for everyday service. A direct-fit upgrade or replacement for matching carburetor configurations from European and Asian manufacturers, including 139QMB 50cc four-stroke applications.

Key Features

  • 18.5mm Inner Diameter: Optimized for QMB139 / 139QMB 50cc four-stroke engines, with additional model applications below.
  • Electric Choke: Consistent cold-start performance.
  • Accelerator Pump: Improved throttle response as you open the throttle.
  • Die-Cast Aluminum Body: Durable construction for regular use.
  • Supplied Jetting: #85 main jet and #34 idle jet.
  • Scooter and ATV Applications: Compatible configurations across the model families below, including Yamaha YFZ 50 ATVs.

Technical Specifications

  • Brand: Naraku
  • Version: V.3
  • Part number: 137-83
  • Manufacturer part number: NK200.01
  • Inner diameter: 18.5mm
  • Air filter connection: 39mm
  • Intake connection: 27.5mm
  • Main jet: #85
  • Idle jet: #34
  • Choke: Electric
  • Accelerator pump: Included
  • Body: Die-cast aluminum

Compatibility

Make Model / configuration
Aprilia Scarabeo 50; Sportcity One 50
Kymco Super 8 50; Super 8 50 4T; Super 8 50 2T; Agility 125; Agility 50; Agility 50 4T; Agility 50 2T; People 50; People 50 2T; New People 50 S 4T; Like 50 4T; Filly 50; Sento 50; New Sento 50; Yager 50; Yager GT 125
Piaggio Zip 50 4T; Liberty 50 4T; matching 50cc 139QMB applications
Vespa Primavera 50 / 3V 4T; LX 50 4T; Sprint 50 / 3V 4T; S 50 4V; ET4 50; matching 50cc 139QMB applications
Yamaha YFZ 50 Youth ATV
Baja SC50
Jonway Beta 50; YY50 QT-6
Peugeot 50cc 139QMB applications
Roketa 50cc 139QMB applications
ZNEN 50cc 139QMB applications
Various 139QMB-powered 50cc scooters and mopeds

 

Model families above include different engine generations, four-stroke versions, and displacements. Compare the 39mm air filter connection, 27.5mm intake connection, throttle linkage, electric choke connector, hose routing and clearance. Confirm jetting for your engine and intake/exhaust setup and adjust if necessary; the supplied #85 main and #34 idle jets are not a universal calibration for every application.

This product is intended for off-road use only. This product is not intended for use on public roads or land.

Product Diagrams
Features
  • 18.5mm inner diameter optimized for QMB139 50cc 4-stroke engines
  • Electric choke for consistent cold-start performance
  • Accelerator pump for improved throttle response
  • Die-cast aluminum body construction
  • Part number: NK200.01
  • Scooter, moped and ATV applications, including Yamaha YFZ 50; match carburetor connections and tune jetting for the engine
Specifications

Brand: Naraku; Version: V.3; Part number: 137-83; Manufacturer part number: NK200.01; Vehicle applications: compatible scooters, mopeds and ATVs, including Yamaha YFZ 50; Inner diameter: 18.5mm; Air filter connection: 39mm; Intake connection: 27.5mm; Main jet: #85; Idle jet: #34; Choke: electric; Accelerator pump: included; Body: die-cast aluminum; Fitment: match installed carburetor configuration and application-specific jetting; Use: off-road only

Model Fitments

Aprilia Scarabeo 50, Sportcity One 50; Kymco Super 8 50 / 4T / 2T, Agility 125, Agility 50 / 4T / 2T, People 50 / 2T, New People 50 S 4T, Like 50 4T, Filly 50, Sento 50, New Sento 50, Yager 50, Yager GT 125; Piaggio Zip 50 4T, Liberty 50 4T; Vespa Primavera 50 / 3V 4T, LX 50 4T, Sprint 50 / 3V 4T, S 50 4V, ET4 50; Yamaha YFZ 50 ATV; Baja SC50; Jonway Beta 50, YY50 QT-6; Peugeot, Piaggio, Roketa, Vespa and ZNEN 50cc 139QMB applications; match 39mm air filter connection, 27.5mm intake connection, linkage, choke connector, routing and clearance; model families span different engine configurations and require application-specific jetting

  • Same day shipping for orders placed before 2PM (CST) M-F
  • 30-day return period on eligible items
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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