Universal Parts 24mm CVK carburetor diaphragm, part 164-259, black rubber with alignment tab, 23mm ID and 60mm OD, for GY6 125cc and 150cc scooters Universal Parts 24mm CVK carburetor diaphragm, part 164-259, black rubber with alignment tab, 23mm ID and 60mm OD, for GY6 125cc and 150cc scooters
Universal Parts carburetor diaphragm for GY6 QMI/QMJ 152/157 scooter engines. 23mm ID, 60mm OD. Fits 125cc & 150cc 4-stroke models. Universal Parts carburetor diaphragm for GY6 QMI/QMJ 152/157 scooter engines. 23mm ID, 60mm OD. Fits 125cc & 150cc 4-stroke models.
Universal Parts 24mm CVK carburetor diaphragm, part 164-259, black rubber with alignment tab, 23mm ID and 60mm OD, for GY6 125cc and 150cc scooters
Universal Parts carburetor diaphragm for GY6 QMI/QMJ 152/157 scooter engines. 23mm ID, 60mm OD. Fits 125cc & 150cc 4-stroke models.

Universal Parts

Universal Parts 24mm CVK Carb Diaphragm - GY6 125/150cc

SKU 164-259
$5.00
Shipping calculated at checkout.
Description

This Universal Parts CVK Carburetor Diaphragm replaces a torn, stiff, or punctured throttle slide diaphragm in 24mm CVK-style carburetors on GY6 125cc and 150cc 4-stroke scooters. It restores vacuum-operated slide movement, which fixes poor idle, hesitation, and flat spots caused by a failed diaphragm.

Key Features

  • CVK 24mm replacement: For the slide-valve carburetors used on most GY6 125/150cc scooters.
  • Restores throttle response: Brings back smooth, vacuum-operated slide lift.
  • Flexible rubber: Seals the vacuum chamber and flexes with every throttle change.
  • Alignment tab: A tab on the outer rim locates the diaphragm correctly in the carb body.

Technical Specifications

  • Part number: 164-259
  • Carburetor type: CVK slide-valve, 24mm
  • Inner diameter: 23mm
  • Outer diameter: 60mm
  • Material: Rubber
  • Includes: Diaphragm only (slide not included)
  • Brand: Universal Parts

Compatibility

Engine Displacement Carburetor
GY6 152QMI 125cc 4-stroke 24mm CVK
GY6 157QMJ 150cc 4-stroke 24mm CVK

 

GY6 engines are based on Honda's original GY6 design and are used by many Chinese scooter brands. Before ordering, check the engine code on your engine case and compare your old diaphragm to the 23mm ID and 60mm OD.

Installation Notes

Align the rim tab with the notch in the carburetor body, and ensure the diaphragm lip is fully seated before refitting the top cover. A pinched lip will cause air leaks and poor slide lift.
Product Diagrams
Features
  • CVK 24mm Slide-Valve Carburetor Diaphragm
  • 23mm Inner Diameter
  • 60mm Outer Diameter
  • Rubber Construction
  • Alignment Tab on Outer Rim
  • Restores Vacuum Throttle Slide Function
Specifications

Part Number: 164-259 | Carburetor Type: CVK Slide-Valve, 24mm | Inner Diameter: 23mm | Outer Diameter: 60mm | Material: Rubber | Includes: Diaphragm only | Brand: Universal Parts
Model Fitments

24mm CVK carburetors on GY6 152QMI 125cc and 157QMJ 150cc 4-stroke scooters; compare 23mm ID / 60mm OD before ordering
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