Genuine Carburetor Air Mixture Setting Screw for TVS Apache RTR 200 4V (SKU: CASTA2004V)
Guaranteed Fitment
Product Description
Micro-Calibrated Taper Tip: CNC-machined with a perfect factory angle profile to ensure smooth, highly predictable mixture changes down to a quarter turn.
High-Resilience Tension Spring: Equipped with a high-tensile steel compression spring to absorb constant engine resonance, preventing the screw from drifting out of calibration.
Premium Mechanical Brass Composition: Forged from high-grade, non-corrosive solid brass to prevent thread seizure or metal deformation inside the aluminum carburetor casting.
Restores Low-End Stability: Cleans up the fuel-air balance during closed-throttle scenarios, resolving cold-start dropouts and low-RPM engine hesitation.
Direct Original Specification Fit: Built as a direct-fit counterpart to original equipment dimensions for seamless seating and sealing depth.
Is your machine struggling with cold starts, dropping in fuel efficiency, or unexpectedly shutting off at low engine speeds? Over time, high engine vibrations can cause your factory pilot adjustment point to drift, or over-tightening can easily blunt its micro-tapered needle tip, disrupting your engine's delicate lower RPM air loop.
The Carburetor Air Screw for TVS Apache 200 4V (SKU: CASTA2004V) is a premium, precision-machined brass component tailored exactly to original factory specifications. This critical component acts as an adjustable gatekeeper, finely regulating the exact volume of air passing through the low-speed pilot circuit when your throttle is fully closed. Installing this fresh, OEM-spec replacement part completely eliminates flat spots during off-idle acceleration, curbs deceleration popping, and stabilizes rough idling.
Technical Specifications
| SKU | CASTA2004V |
| TVS Primary Base Part Number Reference | N9041940 (Equivalent OEM sub-component reference) |
| Material Construction | Industrial Solid Brass Matrix (Screw Core) + Tempered Steel (Spring) |
| Component Classification | Pilot Circuit Air / Fuel Bypass Tapered Adjustment Component |
| Carburetor Style Suitability | Factory-fitted Keihin / UCAL Constant Velocity (CV) Systems |
| Net Weight | 11 grams |