Mikuni Large Round Main Jets - 4/PK #105

Genuine Mikuni large round main jets in #105 sizing, sold as a 4-pack for carbureted V-twin motorcycles. These jets meter fuel flow through the main circuit and are essential replacements when rejetting or restoring a carburetor.

Features

• #105 jet sizing
• 4-pack quantity
• Genuine Mikuni part
• For large round Mikuni carburetors

Specifications

• Brand: Mikuni
• Manufacturer Part #: FN100604-105
• Quantity: 4 per pack
• Jet Size: #105
• Country of Origin: Japan

Fitment

Fits carbureted V-twin motorcycles equipped with large round Mikuni carburetors.

Frequently Asked Questions

How do I know what jet size I need?

Jet size depends on your engine displacement, altitude, and air intake setup. Consult your carburetor manual or a tuning guide for your specific bike.

Are these OEM Mikuni parts?

Yes — these are genuine Mikuni factory jets, not aftermarket copies.

What's included in the 4-pack?

Four #105 main jets ready to install in your Mikuni carburetor.

Do I need special tools to change jets?

You'll need a small screwdriver and basic carburetor disassembly knowledge. Many riders send carbs to a professional tuner for rejetting.