Description
Precision fuel delivery is the foundation of carburetor tuning, and the right main jet directly controls your air-fuel ratio under load. If you’re experiencing hesitation on acceleration, black smoke, or poor midrange response, a worn or incorrectly sized main jet is often the culprit. This 4-pack of genuine Mikuni 180 main jets gives you the exact sizing needed to dial in your carburetor’s fuel curve without guesswork or costly trial-and-error.
OEM Mikuni quality ensures consistent spray patterns and precise metering that aftermarket alternatives simply can’t match. Whether you’re fine-tuning for sea-level or high-altitude conditions, having multiple jets on hand lets you test and optimize your jetting without downtime.
- Mikuni OEM main jet
- Size: 180 specification
- Quantity: 4-pack
- Fits VM16, HS40, HSR42/45/48
- Fits RS, TM, VM29/33 carburetors
- Smoothbore design
- Made in Japan
- Stock carburetor fitment only
- Bolt-on installation
- CNC-precision tolerance
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