NCY
NCY Idle Screw for CVK Carburetors; GY6, 139QMB
SKU 1300-1003
$14.00
/
Shipping calculated at checkout.
Description
Tool-Free Tuning: NCY Performance Idle Adjustment Screw
Stop fumbling for a screwdriver every time the weather changes. The NCY Idle Adjustment Screw replaces the difficult-to-reach stock screw on your CVK carburetor
Key Features & Benefits
- Superior Vibration Resistance: Includes a high-tension spring designed to hold your settings securely, even on high-vibration GY6 engines.
- Durable Brass Construction: Precision-machined for smooth threading and long-term resistance to fuel and heat corrosion.
- Universal CVK Fitment: Designed specifically for the constant-velocity (CVK) style carburetors found on most modern 4-stroke scooters.
Technical Specifications
- Compatibility: CVK / GY6 Style Carburetors
- Material: Machined Brass
- Spring Included: Yes (High-Tension Steel)
- Installation: Direct replacement for OEM idle screw.
Confirmed Vehicle Fitment
This idle screw fits 50cc to 170cc 4-stroke engines utilizing a CVK carburetor:
| Engine Type | Popular Models |
|---|---|
| GY6 125cc / 150cc | Genuine Buddy 125/150 Wolf EX-150, TaoTao Lancer |
| 139QMB / QMB139 | TaoTao Powermax, Wolf Blaze II, Etc. |
Mechanic's Note: When installing, ensure the engine is warm. Screw the new NCY idle screw in until the engine stays running at a steady RPM (typically 1,600–1,900 RPM for GY6). If your bike "dies" at stoplights, this is the quickest fix to keep your engine alive.
SKU: 1300-1003 | Manufacturer: NCY | Part Number: 619N14CVK
Product Diagrams
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Same day shipping for orders placed before 2PM (CST) M-F
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30-day return period on eligible items
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Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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