Jet needle N427-46-JFG/JFN/JFQ/JJD/JJE/JJF/JJG/JJJ/JJK/JJH with Clip for Needle 0403-802-1000 (018-033) is designed for use with 32/34 carburetors. This jet needle, along with the mixer tube, regulates the fuel-air mixture in partial load or half throttle ranges. The needles vary in color, pattern, internal coating, and dimensions, each impacting the composition of the mix.
Typically, a larger jet results in a richer mixture, while a larger needle enriches the mix earlier. The needle features various clip positions that determine its immersion depth in the mixer tube, affecting the richness of the mix at half throttle. If the needle is in the lowest position and the mixture is too rich, it may be necessary to choose a thicker needle or a smaller mixer tube.
Compatibility Disclaimer: This is an aftermarket replacement part. Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.