Description
If your Mikuni carburetor is running lean or rich, a proper main jet swap is the fastest way to dial in your air-fuel mixture without replacing the entire carb. This 4-pack of OEM-equivalent #100 main jets gives you the flexibility to test jetting changes, keep spares on hand, and nail your engine’s sweet spot for peak performance across your target RPM range.
Whether you’re tuning a street bike, small-displacement racer, or vintage powersports machine, these genuine Mikuni jets deliver the precision metering your carb was designed for—no guesswork required.
- Quantity: 4-pack
- Jet size: #100
- Part number: 4/042-100
- Manufacturer: Mikuni
- Compatible carbs: VM18, VM24-512, VM26-512, VM26-606, TMX Series
- Application: Direct replacement for OEM 4/042 jets
- Origin: Made in Japan
- Installation: Bolt-on (no fabrication)
- Material: OEM-spec brass
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