Product Name: High Precision Carb Main Nozzle
Category: Main Jet
Jet Size: # 40 - 78
Material: Brass, Stainless Steel, Nylon
Thread Size: M4 X 0.7mm

Features:
- Complete Carburetor Primary Jet Kit: The package includes 16 main jet, 5 cleaning needles, and 5 cleaning brushes, all packaged in a small plastic box. Each jet is engraved with a number. The round main jet: #40, #42, #45, #48, #50, #52, #55, #58, #60, #62, #65, #68, #70, #72, #75, #78.
- Function: The main jet mainly controls the fuel flow in the main oil circuit and regulates the concentration of the mixture. When your motorcycle emits black smoke from the exhaust pipe, has high fuel consumption, carbon deposits on the spark plug, lacks power, overheats the engine, or backfires, it is possible that the main injector is blocked or damaged and needs to be replaced in a timely manner.
- Superior Premium Material: The carburetor high precision jet kit is made of copper, tough and long-lasting, corrosion resistant. CNC lathe processing, smooth surface, accurate size. 5 stainless steel bristles and cleaning needles are made of 304 stainless steel, wire winding, rust, flexible handle, no deformation. High density nylon, good elasticity, no shedding.
- Fitment: Aftermarket high speed jet fit for GY6 49cc 50cc 80cc 100cc engine, fit for CVK 139QMB 139QMA PZ19 carburetor. Widely compatible with most Chinese made scooters ATVs and Go Kart, fit for Jonway JMSTAR Roketa, fit for Sunl Taotao Kazuma PEACE.
- Easy Installation: Simply turn off the fuel switch, unplug the fuel pipe, remove the carburetor, and remove the float component. Then find the main jet, carefully unscrew the damaged low speed nozzle with a precision screwdriver, and replace it. The Main Jet:
- Quantity: 16 pcs
- Length: 7mm
- Thread: M4 X 0.7mm
- Size: 40 / 42 / 45 / 48 / 50 / 52 / 55 / 58 / 60 / 62 / 65 / 68 / 70 / 72 / 75 / 78

Cleaning Brush
- Overall Length: 110mm
- Brush Length: 30mm
- Brush Diameter: 3mm / 4mm / 5mm / 6mm / 7mm
- Wire Diameter: 0.5mm / 0.6mm / 0.6mm / 0.7mm / 0.7mm

Cleaning Wire Torch Tip
- Overall Length: 110mm
- Wire Diameter: 0.4mm / 0.5mm / 0.6mm / 0.7mm / 0.8mm Place of Application:
- Fit for GY6 49cc 50cc 80cc 100cc engine.
- Fit for CVK 139QMB 139QMA PZ19 Carburetor.
- Widely compatible with most Chinese made scooters ATVs and Go Kart, fit for Jonway JMSTAR Roketa, fit for Sunl Taotao Kazuma PEACE.

Package Include:
16 x Carburetor Main Jet Kit
5 x Cleaning Needles
5 x Brush