YGQ Main Jet & Pilot Slow Jet Kit for Mikuni VM4/VM22 Carburetors – 30-Piece Large Hex Set

Enhance Mikuni Carburetor Tuning with the YGQ Jet Kit

The YGQ Main Jet & Pilot Slow Jet Kit is crafted for Mikuni carburetors found on a wide range of motorcycles, ATVs, and other machines that rely on VM-style units. This 30-piece set centers on large hex main jets and precise pilot jets, designed to support tuning across VM4/VM22 families and related VM configurations. Rather than a one-size-fits-all approach, this kit offers a broad spectrum of jet sizes that riders can experiment with to refine fueling under different riding conditions.

Whether you’re chasing smoother idle, crisper throttle response, or steadier power delivery, the kit provides a practical path to explore air-fuel balance without swapping components from multiple sources. The focus is on credible, adjustable options that acknowledge real-world use rather than guarantees, so you can evaluate what each change feels like on your setup.

Key jet sizes

• Large hex main jet sizes: 80, 90, 100, 110, 120, 125, 130, 135, 140, 150, 160, 170, 180, 200, 220, 240
• Pilot slow jet sizes: 25, 27.5, 30, 32.5, 35, 37.5, 40, 42.5, 45, 50, 55, 60, 70, 80

Compatibility and coverage

The kit is designed for a broad range of Mikuni VM carbs, including VM4/VM22 configurations, along with other VM variants and Mikuni TMX types. It is commonly used with models from well-known brands and categories, spanning two-stroke and four-stroke engines. The listing emphasizes compatibility across a variety of machines that rely on VM-based carburetors, making it a versatile upgrade for many riders who enjoy tuning flexibility.

How to use and important notes

• Please check the size on the product images to avoid mistakes before ordering.
• Choose jet sizes based on engine type, altitude, and fuel characteristics; make adjustments gradually to gauge impact.

Why choose YGQ for Mikuni tuning

Riders value precise control and repeatable settings. The kit’s wide range of main and pilot jets supports experimenting with air-fuel mixtures, which can contribute to smoother idle, more predictable throttle response, and stable performance as conditions change. This is designed as a practical option for tuning enthusiasts who want to explore different configurations without sourcing parts separately.

• Wide jet range supports flexible experimentation without frequent part swaps.
• Fine pilot jets enable improved idle stability and throttle feel.
• Broad VM carb compatibility helps cover multiple bikes or engines with VM-based carbs.