Does it fit your motorcycle?
Look it up by licence plate or VIN, or choose your model.
Confirmed compatible · Position:
This part doesn't fit your bike. See parts that fit
Fits most motorcycles
Not model-specific. Check dimensions and specifications in the description before ordering.
Chosen by size, not by model
The size is printed on the tyre sidewall, e.g. 120/70 ZR17, and in your registration document.
Checking fitment…
Fitment check unavailable
Mikuni 4/042 Main Jets #90 4-Pack for VM TMX Carburetors
Product info
- Item number
- KM404290
- Manufacturer number
- 4/042-90
- Position
Achieve optimal fuel mixture and engine performance with the genuine Mikuni 4/042 Main Jet #90 4-Pack. These precision-engineered main jets are crucial for fine-tuning your Mikuni carburetor, ensuring your motorcycle runs at its peak efficiency and power.
Description
Elevate your motorcycle's performance with authentic Mikuni 4/042 Main Jets. This convenient 4-pack provides the essential #90 jet size, critical for dialing in the perfect air-fuel ratio in your Mikuni carburetor. Manufactured in Japan to Mikuni's stringent quality standards, these main jets guarantee consistent flow and reliable operation, preventing common issues like rich or lean running conditions. They are specifically designed to fit a range of Mikuni carburetors, including the VM18 (clamp-on), VM24-512, VM26-512, VM26-606, and TMX Series. Whether you're replacing worn components, performing a carburetor rebuild, or fine-tuning for specific engine modifications or environmental conditions, these genuine Mikuni carburetor jets are indispensable. For those with original equipment (OE) applications, always cross-reference dimensions to ensure a flawless fit and optimal function.
Features & Highlights
- Genuine Mikuni Precision: Manufactured to exact specifications by Mikuni in Japan, ensuring consistent quality and reliable performance for your motorcycle's fueling system.
- Optimized for Mikuni VM & TMX Series: Specifically designed for Mikuni VM18 (clamp-on), VM24-512, VM26-512, VM26-606, and TMX Series carburetors, guaranteeing proper fit and function.
- Precise #90 Jet Size: Provides accurate fuel metering for fine-tuning your engine's air-fuel ratio, essential for achieving peak power delivery and crisp throttle response.
- Convenient 4-Pack: Includes four #90 main jets, ideal for iterative tuning adjustments, maintaining a consistent supply for regular maintenance, or stocking up on essential spares.
- Versatile OE Compatibility: Suitable for various original equipment applications; however, verifying dimensions against your current setup is highly recommended for perfect integration.
Technical Specifications
- Brand: Mikuni
- Jet Series: 4/042
- Jet Size: #90
- Quantity: 4-Pack
- Country of Origin: Japan
Important to Know
- Always verify current jet dimensions and the required size for your specific carburetor and application before purchase.
- Mikuni carburetors and other related components are not included with this product.
- Professional installation and tuning by a qualified mechanic are highly recommended for optimal performance and engine longevity.
- Vendor part number
- 4/042-90
- Width
- 10 mm
- Height
- 10 mm
- Length
- 10 mm
Free shipping to a GLS parcel shop or parcel box on orders over €200.
We ship your order as quickly as we can. Orders are usually packed within 24 hours on weekdays.
You have a 14-day right of return. Read more
Certified e-mærket web shop
