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Naraku Carburetor CVK 18.5mm (139QMB)

Naraku Carburetor CVK 18.5mm (139QMB)

Description: Naraku V.3 carburetor 18.5mm for 50cc 4-stroke scooters. Naraku quality at an affordable price. Unlike most Chinese alternatives that have start issues, the Naraku V.3 carburetor has a good drive. Prevents flat spots and allows you to conveniently drain the float bowls. Complete with E-choke and 84 main jet. Naraku 18.5mm connection is fine for 4-stroke scooters and mini-quads from 50-90cc with 139QMB engines. Air filter connection: 40mm. Intake connection: 28mm. Jet Size is 4mm.


•    E-Choke
•    Non-Accelerator Pump
•    Cable/Rear Pull Linkages
•    Throttle Adjustment Knob
•    Open & Adjust Enricher Screw


•    Airbox Side: ID 34.4mm, OD 39.44mm
•    Engine Side: ID 17.7mm, OD 27.7mm
•    Venturi: 18.5mm


•    Main: 84 (4mm Thread) CVK Style
•    Pilot: 35s (6mm Thread x 28 Length)
•    Made in Taiwan
•    Fit Air-Filter Port I.D. 3mm max. ± 40mm
•    Fit Intake Manifold 2mm max. ± 26mm
•    Fit QMB 49/50cc+

Supported Models: 139QMB 49cc-50cc engines, Baja SC50, Boreem (BMS) 50, Filly 50, Kymco 50, Panterra 50, Qingqi 50, QLink 50, Roketa 50, SUNL 50, SYM 50, Tank 50, TaoTao 50, and virtually any other scooter engine with these measurements.

Item Weight & Package Dimensions:
•    1.312 pounds | 6" (L) x 4.75" (W) x 4.75" (H)

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Naraku Carburetor CVK 18.5mm (139QMB)
  • Stock: 27
  • Reward Points: 2
  • Part #: NK200.01
Sold: 27
Views: 32644
Price in reward points: 69