The Digi Sync™ is the world’s leading digital carburetor synchronizer.

This Digital Carb Sync Tool was designed by motorcycle enthusiasts for motorcycle enthusiasts right here in the Heart of America.

We support American workers by manufacturing all of our products in the USA!

Through much research and development, we’ve successfully adapted our product so that it also works on all cars, boats, and motorcycles with Independent Throttle Bodies (ITBs) or Independent Carbs.

We have been in business since 2015 and now ship thousands of units worldwide each year to happy customers. We stand behind our product and are VERY PROUD to declare that our customer return rate is less than 0.5%!


We never felt right about paying a mechanic to do routine maintenance on our bikes. So, we taught ourselves how to synchronize our carbs. In the process we became very frustrated with the tools available. Some tools required lengthy calibration processes. The rest left us with an “I guess it’s close-ish” level of confidence. So, we said there’s got to be a better way. We searched and found several “high-end” options, but the price was in the ridiculous category. So, being the geeks that we are, we set out to build our own highly accurate digital peaking manometer (vacuum gauge) so that we could share a digital carburetor synchronization tool with the masses.

We showed it to our friends at various bike rallies and everyone we showed it to was blown away to learn that they could sync their own carbs and throttle bodies just as easy, and in as little time, as it takes to change their own oil! It was apparent to everyone that they could EASILY synchronize their motorcycle faster than it would take them drive it to the local mechanic. You can forget about the inconvenience of dropping off your bike, arranging for a ride, and then coming back days later to pick it up.

The positive feedback fueled us to continuously and meticulously refine our digital carburetor synchronizer (hardware, software, mechanical, graphics, website, etc…) until it became what you see today which is a professional grade tool meant for DIYrs, enthusiasts, and professional mechanics who want to knock out a 1-hour job (book time) in 15-minutes.

Our customers constantly tell us that we could be charging +$400 for our digital carb sync tool. That’s simply not our style! We built this tool to fill a need and we want to share it with an audience that we love. We intentionally keep our price low so that it can be affordable to the many weekend warriors out there, like you!


Out of balance carburetors and throttle bodies result in diminished horsepower and gas mileage. It also leads to lean (hot) as well as rich (cool) cylinder conditions damaging your engine.

A proper throttle body synchronization requires matched quality sensors and hoses. Poor hose quality can diminish the vacuum signal and distort the readings.

If you want peak performance and optimum fuel economy from your engine, you need to synchronize all your carburetors or throttle bodies simultaneously! All throttle linkages interact with one another making it impossible to get perfect synchronization unless you can see all channels at one time. Without this, you’re in for a frustrating drawn-out process that ends with an “I guess it’s close-ish” kind of feeling.

Competing carburetor synchronizer tools only offer up to 4 channels! What about all the motorcycles, cars, & boats with 6 carbs or throttle bodies..!? Our 6-Channel electronic carb sync tool (most popular model) can be used on vehicles with 2, 3, 4, 5, or 6 carbs or throttle bodies! Need an 8-channel unit? Let us know. If we get enough requests, we’ll make one available!

Enjoy modern state-of-the-art electronics and software that make The Digi Sync an absolute leader in digital peaking manometer (electronic carb sync tool) technology.


Don’t be left guessing if your carburetors or throttle bodies are still within spec. Syncing is part of regular routine maintenance. Don’t be dependent on your mechanic who is likely using an outdated and imprecise water colum gauge.


  • For carburetors and throttle body linkage adjustments
  • Digital Vacuum Gauge readings can help diagnose problems
  • Powered with 9-volt battery for +10 hours of operation
  • Super Strong magnet sticks to metal gas tanks
  • Set of 5mm and 6mm sealed adapters
  • Vacuum tubing is 5/32″ ID and can be purchased at any auto parts shop if lost or damaged
  • LCD display is brightly backlit making it sunlight readable
  • Convenient and durable storage case
  • Replacement vacuum caps to replace your old and brittle caps


We’re so confident there is no better Digital Carb Synchronization Tool out there, we are happy to give you a list of our competitors so you can compare for yourself. Our product wins on Value: Accuracy, Portability (battery powered), and Cost!

Alpha Moto Motorcycle carburetor synchronization gauge

Motion Pro SyncPro™ Carb Tuner

pdS – Carb Sync 4 Channel Digital
Vacuum Gauge Motorcycle

Tecmate TS-72 VacuumMate

Global CarbMate TS-110

HealTech – eSync

Carbtune Pro 4



Other names we are known by:

Digital Peaking Manometer, Motorcycle Manometer, Synchronizing Carburetors, Vacuum Gauges, Digital Carb Sync Tool, Digital Carb Synchronizer Tool, Digital Carb Balancer Tool, Digital Carb Vacuum Gauge, Digital Carburetor Sync Tool, Digital Carburetor Synchronizer Tool, Digital Carburetor Balancer Tool, Digital Carburetor Vacuum Gauge, Digital Throttle Body Sync Tool, Digital Throttle Body Synchronizer Tool, Digital Throttle Body Balancer Tool, Digital Throttle Body Vacuum Gauge, Digital ITB Sync Tool, Digital ITB Synchronizer Tool, Digital ITB Balancer Tool, Digital ITB Vacuum Gauge


DS3+ with Software Version 3.2 – Released in April 2024

-Hoses are no longer detachable and are now permanently installed into the unit.

-Front face of the product switched from glossy to matte surface to better hide fingerprints & scratches

-Labeling added to Vacuum Caps and 5mm & 6mm adapters.

-Added thank you card and promotional sticker

-Changed LED color at power-up from yellow to blue-green.


DS3 with Software Version 3.1 – Released in January 2023

-Added color to the The Digi Sync Logo

-Updated QR code to take users to the digital version of our instruction manual.

-Hard plastic storage case replaced with padded zipper storage case.

DS3 with Software Version 3.1 – Released in April 2022

-Added ability to cycle through units: kPa, mBar, InHg, mmHg, PSI, and Legacy Digi Sync units. To cycle units, just press and hold the button for at least 2 seconds. Note: The unit will always default to kPa at power-up.

-Press the button to turn the unit on and off. No longer need to press and hold to turn the unit off.

-Added auto shut-down feature after 1-hour to preserve battery life. This feature can be toggled off with 5 QUICK taps of the button.

-The device now displays an extra decimal of precision in low-vacuum situations.

DS3 with Software Version 3.0 – Released in 2021

-Updated graphics. Added glowing eyes to the Hexapod logo.

-Power switch was replaced by a button incorporated into the top overlay. Press to turn the unit on. Press and hold to turn the unit off.

DS2+ with Software Version 2.2 – Released in 2020

-Updated graphics. Added QR code and updated the Hexapod logo.

DS2+ with Software Version 2.2 – Released in 2018

-Updated background graphics. Added blue to black gradient.

-Firmware updated to support more vehicles. Upgraded to overcome hot cams with positive pressure pulses.

DS1+ with Software Version 2.1 – ORIGINAL MODEL – Released in 2015

-This original unit was shared with friends, family, and a local motorcycle club. The Digi Sync was instantly popular and the business quickly grew by word-of-mouth. From here, we started getting mentioned in biker chat forums and the requests started flooding in!