This Naraku 24mm CVK carburetor gives your compatible GY6 150cc or 139QMB 85cc+ big-bore build the airflow it needs to make the most of its setup. The constant-vacuum design pairs a vacuum-operated slide with cable-operated throttle control, while the included electric choke provides automatic cold-start enrichment. With its metal float bowl, diaphragm cover and accessible throttle linkage, it brings familiar CVK operation to a properly matched performance build.

Key Features

• 24mm CVK bore: Increased airflow for compatible GY6 150cc and 139QMB big-bore engines of 85cc or larger.
• Constant-vacuum operation: Vacuum-operated slide works with the cable-operated throttle butterfly.
• Electric choke included: Automatic enrichment for cold starts with a compatible electrical connection.
• Defined connection sizes: 32mm intake connection and 42mm air-filter connection help you match the installation.
• Serviceable jetting: Supplied with a #102 main jet and #35 idle jet; final tuning must suit the engine, intake and exhaust.
• No accelerator pump: CVK configuration without an accelerator-pump assembly.

Technical Specifications

• Brand: Naraku
• Part number: 137-67
• Manufacturer part number: NK200.06
• Carburetor type: CVK, constant vacuum
• Bore: 24mm
• Intake connection: 32mm
• Air-filter connection: 42mm
• Main jet: #102, M5 × 0.8 thread
• Idle jet: #35, M6 × 0.75 thread
• Choke: Electric, included
• Accelerator pump: None
• Throttle control: Cable-operated butterfly with vacuum-operated slide

Compatibility