Mikuni Large Round Main Jets #105 - 4 Pack for 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.
Genuine Mikuni large round main jets in #105 sizing are essential for carbureted V-twin motorcycles. This 4-pack provides the crucial components needed to accurately meter fuel flow through the main circuit.
Why riders pick this
- Genuine Mikuni part for authentic quality
- Precise #105 jet sizing for enriched fuel mixture
- Designed for large round Mikuni carburetors
- 4-pack for tuning versatility and replacement stock
These Mikuni large round main jets are designed to control the volume of fuel delivered to your engine at mid-to-high throttle openings. The #105 jet size is a common choice for riders looking to achieve a richer fuel mixture, especially after installing performance air cleaners or exhaust systems that increase airflow. With a 4-pack, you'll have the flexibility to fine-tune your carburetor and ensure you have spares for future adjustments or rebuilds.
Precise Fuel Delivery for Peak V-Twin Performance
- Genuine Mikuni part ensures authentic quality and fit
- #105 jet sizing for a richer, more powerful fuel curve
- Designed for large round Mikuni carburetors
- 4-pack quantity for comprehensive tuning and spares
Tuning Your Harley or Indian for Optimal Output
Achieving the correct jetting is paramount for unlocking your V-twin's full potential. Whether you're compensating for elevation changes, temperature fluctuations, or performance modifications, these #105 main jets are a vital component. Always consult your carburetor's manual or a trusted tuning guide to confirm the specific jet size required for your Harley-Davidson or Indian Motorcycle model and setup.
Specifications
- Brand: Mikuni
- Manufacturer Part #: FN100604-105
- Quantity: 4 per pack
- Jet Size: #105
- Country of Origin: Japan
Common questions
How do I know what jet size I need?
Jet size depends on your engine displacement, altitude, and air intake setup. Consult your carburetor manual or a tuning guide for your specific bike.
Are these OEM Mikuni parts?
Yes — these are genuine Mikuni factory jets, not aftermarket copies, ensuring quality and precise fitment.
What's included in the 4-pack?
Four #105 main jets ready to install in your Mikuni carburetor, providing ample supply for tuning or as spares.
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 | 134-7105 |
| WEIGHT | 0.05 lb |
