FX Engines Carburetor Main High Speed Needle + O-Ring

The FX Engines Carburettor Main High Speed Needle + O‑Ring (FX658301) is a genuine replacement assembly for FX nitro engine carburettors. It restores positive sealing and precise top‑end fuel metering, helping you maintain consistent performance and tune the high‑speed mixture with confidence.

Purpose & Benefits

• Genuine FX Engines spare part
• Includes main high speed needle and sealing O‑ring
• Supports accurate high‑speed mixture adjustment
• Ideal for replacing worn or damaged components during maintenance

Part number FX658301 is intended for FX Engines carburettors commonly used across RC applications such as cars, buggies and truggies. After installation, recheck your carburettor settings and perform standard tuning to suit your fuel and running conditions.