HD-X Upgrade Package with Chrome-Plate Slide & Xcelerator Rod | BILLETRON HD300 Carbs 1990-2025-ktm-85-esr9885316 4x Float Bowl Screws

4x Float Bowl Screws

With three precision fuel circuits — the externally adjustable Idle Fuel Control

with compatibility across dirt bikes

✅ Improves low-speed control and snap-on power delivery

Compatible with all Legacy and H-Series models

HD-X Upgrade Package with Chrome-Plate Slide & Xcelerator Rod | BILLETRON HD300 Carbs 1990-2025-ktm-85-esr9885316 4x Float Bowl ScrewsThis upgrade package brings your BILLETRON HD300 carburetor up to HD X specifications. It includes a chrome plated brass slide for smoother throttle operation and increased durability, along with the Xcelerator metering rod for improved fuel response and acceleration across the throttle range. The chrome plated slide resists wear and reduces friction under high load conditions, while the Xcelerator rod delivers a more refined fuel curveenhancing both