NCY Air Adjusting Screw (CVK Carb); GY6
NCY Air Adjusting Screw (CVK Carb); GY6
$25.21
Out of stock
*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
Orders placed by 1pm EST on weekdays ship the same day.
Product Details
Description
NCY Air Adjusting Screw (CVK Carb); GY6
Replacement Part Details
Use this part when the original component is worn, damaged, missing, or no longer working correctly. Many scooter parts can look similar but use different sizes, plugs, brackets, thread patterns, or mounting styles, so careful comparison before purchase is recommended.
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: GY6
- Fitment Notes: Auto Transmission
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Is this for GY6 scooters?
A: This SKU is listed with GY6 engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 0.3 lbs |
|---|---|
| Dimensions | 4.5 × 3.5 × 1 in |
NCY replacement air/fuel ratio adjusting screw (mixture screw) for CVK-style carburetors on GY6 125cc and 150cc 4-stroke scooters. The factory D-screw requires a proprietary tool to adjust — this NCY screw features a standard flat-head slot so you can fine-tune your idle mixture with a regular screwdriver. Brass body for precise metering. Includes return spring, aluminum washer, and black O-ring. Made in Taiwan by NCY (Chian-Yie Industrial).
Key Features:
- Standard flat-head slot — adjustable with any flat-head screwdriver, no proprietary D-screw tool needed
- Brass body for corrosion resistance and precise fuel metering
- Complete kit: includes adjusting screw, return spring, aluminum washer, and black O-ring
- Direct replacement for CVK carburetor mixture screws on GY6 157QMJ / 152QMI engines
- Made in Taiwan by NCY Motor Sports (Chian-Yie Industrial Co., Ltd.)
- Brand: NCY Motor Sports
- SKU / MPN: 1300-1001 / 619N15CVK
- Application: Air/fuel ratio (mixture) adjusting screw
- Fits: CVK-style carburetors on GY6 125/150cc engines
- Includes: Brass screw, return spring, aluminum washer, O-ring
- Made in Taiwan
Compatibility: Fits any GY6 157QMJ- or 152QMI-based 125cc–150cc scooter equipped with a CVK-style slide-vacuum carburetor. Verify your carburetor type before ordering — not for PZ or PE-style carbs.
Tuning tip: Start at 2.5 turns out from lightly seated. Adjust in 1/4-turn increments at warm idle for best throttle response. Richer (more turns out) for lean stumble; leaner (fewer turns out) for a rich roll-on bog.
Off-road use only. Not intended for use on public roads or land.
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