SMP Vacuum Operated Switch Kit - Harley & Indian V-Twin
About SMP
Standard Motor Products supplies ignition, sensor and electrical components across the automotive and powersports markets, with V-twin parts covering switches, sensors and ignition hardware.
Get precise control over your V-twin's carbureted engine performance with the SMP Vacuum Operated Switch Kit. This self-assembly design allows you to select specific calibration levels, perfectly matching your engine modifications and jetting requirements. Each unit undergoes rigorous calibration and vacuum testing to guarantee accuracy and reliability.
Why riders pick this
- Customizable calibration for modified carbureted engines
- Regulates fuel mixture and emissions control
- High-tech engineered thermoplastic construction
- Every unit 100% calibrated and vacuum tested
- Includes bracket, crimp terminals, and instructions
The SMP Vacuum Operated Switch (VOES) Kit is an essential upgrade for any rider looking to optimize their carbureted Harley-Davidson or Indian Motorcycle. This switch plays a vital role in regulating fuel mixture and emissions control by dynamically responding to engine vacuum. It ensures your carburetor performs optimally across various load and throttle positions, adapting to the demands of your modified V-twin.
Tailored Performance for Your V-Twin
- Self-assembly design with preset calibration options for custom tuning
- Regulates fuel mixture and emissions based on engine vacuum
- Constructed from high-tech engineered thermoplastic for durability
- Each switch is 100% calibrated and vacuum tested for consistent performance
- Includes mounting bracket, crimp terminals, and detailed instructions
Achieve Optimal Carburetor Performance
For V-twin owners who have invested in performance upgrades like cam swaps or exhaust systems, a stock VOES might not cut it. This SMP kit provides the flexibility to dial in your carburetor's response, ensuring your engine runs efficiently and powerfully after modifications. The ability to select calibration levels means you can precisely match the switch's behavior to your unique engine setup, unlocking the full potential of your build.
Specifications
- Brand: Standard Motor Products
- Manufacturer Part #: MCVOS2
- UPC: 091769544546
- Weight: 0.6466 lbs
Common questions
What is the primary function of a vacuum-operated switch?
A VOES regulates fuel mixture and emissions control, adapting carburetor performance to engine load and throttle position based on vacuum levels.
How do I choose the correct calibration level?
The self-assembly kit includes instructions to guide you in selecting the preset calibration that best matches your engine displacement, carburetor size, and specific modifications.
What components are included in this kit?
The kit contains the vacuum switch assembly, a mounting bracket, crimp terminals, and detailed installation instructions.
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 | SMP |
| TYPE | Switches |
| SKU | 275-01151 |
| WEIGHT | 0.65 lb |
