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 Jet #85
Product info
- Item number
- KM404285
- Manufacturer number
- 4/042-85
- Position
Enhance the precision and performance of your motorcycle's fuel system with the genuine Mikuni 4/042 Main Jet #85. Engineered for exact fuel delivery, this crucial component ensures your engine runs efficiently and powerfully across its RPM range.
Description
The Mikuni 4/042 Main Jet #85 is an essential component for fine-tuning your Mikuni carburetor, ensuring optimal fuel-to-air mixture for peak engine performance. Specifically designed for compatibility with various Mikuni VM series (including VM18 clamp-on, VM24-512, VM26-512, VM26-606) and TMX series carburetors that originally utilize the 4/042 main jet type, this jet provides reliable and consistent fuel flow. Precision-manufactured in Japan, it embodies the high-quality standards Mikuni is known for, guaranteeing durability and accurate jetting. Proper main jet selection is critical for maximizing horsepower, improving throttle response, and maintaining engine longevity. Whether you're replacing a worn jet or custom-tuning your setup, this Mikuni carburetor jet ensures your engine receives the correct amount of fuel, preventing both lean and rich conditions. Its versatile design also allows it to fit several original equipment (OE) applications, making it a valuable part for a wide range of motorcycles.
Features & Highlights
- Genuine Mikuni Quality: Experience superior performance and reliability with a 100% genuine Mikuni component, manufactured with meticulous attention to detail in Japan.
- Optimized Fuel Delivery: The #85 main jet size provides precise fuel metering, crucial for achieving the ideal air/fuel ratio for your engine's specific needs, enhancing power and efficiency.
- Broad Carburetor Compatibility: Specifically engineered to fit a wide array of Mikuni VM series carburetors, including VM18 (clamp on), VM24-512, VM26-512, VM26-606, and TMX series models, ensuring a direct and hassle-free replacement.
- Versatile Application: Beyond standard Mikuni carburetors, this 4/042 main jet is also suitable for various original equipment (OE) applications, offering flexibility for different setups.
- Essential for Tuning: A critical part for both routine maintenance and performance tuning, allowing riders to fine-tune their engine's response and power delivery.
Technical Specifications
- Brand: Mikuni
- Part Series: 4/042
- Main Jet Size: #85
- Country of Origin: Japan
Important to Know
- Always verify the specific dimensions and jet type required for your carburetor model before ordering to ensure correct fitment.
- Vendor part number
- 4/042-85
- Width
- 10 mm
- Height
- 10 mm
- Length
- 20 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
