Description
Precise fuel metering is foundational to carburetor tuning, and a quality main jet directly impacts throttle response, fuel efficiency, and peak power delivery. This 4-pack of genuine Mikuni main jets eliminates guesswork during jetting changes, giving you multiple sizes to dial in your air-fuel ratio without repeated part orders. Whether you’re fine-tuning for altitude, seasonal changes, or a modified engine, having backup jets on hand is essential for any serious carb-equipped setup.
- Mikuni OEM main jet
- Size: 177.5
- Quantity: 4 jets
- Fits VM16 carburetors
- Fits HS40 carburetors
- Fits HSR42/45/48 carburetors
- Fits RS carburetors
- Fits TM carburetors
- Fits VM29/33 smoothbores
- Made in Japan
- Direct bolt-in fitment
- OE applications only
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