Jet Mikuni Main #360 Hex (4/Pkt)

The Mikuni Main Jet #360 Hex is a genuine replacement and tuning jet designed for use in Mikuni carburettors. Main jets govern fuel delivery at mid-to-full throttle, making correct jetting critical for reliable engine performance and efficiency.

Sold as a pack of four, this set suits riders who are dialling in their jetting setup across varying conditions — altitude, temperature, and intake or exhaust modifications all influence the ideal jet size. Having spares on hand simplifies systematic tuning without repeated ordering.

The hex-head design allows straightforward installation and removal using standard tools, reducing the risk of damage during frequent jet changes.

• Genuine Mikuni main jet in size #360
• Hex-head design for installation and removal with standard tools
• Controls fuel delivery at mid-to-full throttle range
• Pack of 4 — practical for tuning across conditions or stocking spares
• Compatible with Mikuni carburettors that accept hex-style main jets

• 4x Mikuni #360 Hex Main Jets

Verify that #360 is the correct jet size for your specific carburettor model and application before installation — consult a jetting chart or your carburettor's service manual.
Use the correct hex key or socket when installing; tighten snugly but do not overtighten, as brass jets are easily damaged.
When tuning, change jet sizes in small increments and test ride between changes to identify the optimal size for your conditions.
If reusing a jet, clean it with fresh carburettor cleaner and compressed air only — never use wire, drill bits, or abrasives to clean or enlarge the orifice, as this permanently alters fuel flow.
Inspect each jet for cracks, corrosion, or a deformed orifice before fitting; discard any that show damage.
Store unused jets in a sealed container or their original packaging to prevent contamination from dirt, moisture, or solvent residue.
Altitude, ambient temperature, and modifications to the air intake or exhaust system all affect the ideal jet size — re-evaluate jetting whenever these factors change significantly.