Mikuni Large Round Main Jets #162.5 4-Pack - Harley & Indian V-Twin
About Mikuni
Mikuni has supplied carburetors and fuel-system components to the motorcycle industry for decades, and its HSR series remains a common choice for carbureted Evolution and Twin Cam V-twins where a clean, tunable fuel curve matters more than electronics.
These genuine Mikuni large round main jets, sized at #162.5, are crucial for metering fuel flow through the main circuit of your V-twin's carburetor. Sold in a 4-pack, they provide the necessary components for Harley and Indian riders to precisely dial in fuel delivery. This ensures optimal performance at cruise and part-throttle operation.
Why riders pick this
- Genuine Mikuni OEM quality for reliable performance
- Precise #162.5 sizing for cruise and part-throttle
- 4-pack for convenient tuning adjustments and spares
- Optimized for V-twin motorcycles with Mikuni carburetors
When optimizing your V-twin for peak performance and smooth operation, precise fuel metering is paramount. These Mikuni large round main jets, specifically in the #162.5 size, are engineered to deliver accurate fuel flow to your engine's main circuit. Whether you're compensating for elevation changes, modifying your air intake, or fine-tuning an aftermarket exhaust, having the right main jet is key to unlocking your Harley or Indian's full potential.
Accurate Fuel Metering
- Genuine Mikuni OEM components for assured quality
- #162.5 jet size for precise cruise and part-throttle tuning
- Convenient 4-pack for comprehensive tuning and spares
- Designed for V-twin motorcycles with Mikuni carburetors
Precision for Your Ride
The right main jet can significantly impact your V-twin's throttle response and overall power delivery. Using these #162.5 Mikuni jets allows you to fine-tune your air-fuel mixture, preventing issues like hesitation or excessive fuel consumption. For riders who demand the best from their Harley or Indian, precise jetting is a foundational step in any performance build, working seamlessly with upgraded air cleaners and exhaust systems.
Specifications
- Brand: Mikuni
- Manufacturer Part #: FN100604-162.5
- Quantity: 4 per pack
- Jet Size: #162.5
- Length: 4.4 in
- Width: 2.2 in
- Height: 0.6 in
- Weight: 0.05 lbs
- Country of Origin: Japan
Common questions
What does a main jet like the #162.5 do?
A main jet primarily controls fuel flow through the main circuit, affecting the air-fuel mixture at cruise and part-throttle speeds. A #162.5 jet provides a specific, richer flow than smaller sizes.
How many main jets are typically needed for a V-twin carburetor?
Each carburetor typically uses one main jet. This 4-pack provides enough for tuning adjustments, having spares, or servicing multiple carburetors.
Will these fit my Harley-Davidson with a stock Mikuni carburetor?
These genuine Mikuni jets are designed for V-twin motorcycles with Mikuni carburetors. If your Harley uses a Mikuni carb, either stock or aftermarket, these should be compatible. Always confirm your specific carb model and existing jet style.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Mikuni |
| TYPE | Jets |
| SKU | 134-71625 |
| WEIGHT | 0.05 lb |
