Frequently Asked Questions

Yes, the 6-channel version will work on engines with 2, 3, 4, 5, & 6 carbs or throttle bodies.

Note: When not using channels, leave them hanging freely. Do NOT cap them off.

If your bike is more than a few years old, chances are that your vacuum caps may be cracked and brittle from aging making them prone to ripping when you pull them off. We've added these replacement vacuum caps for free as a courtesy hoping it'll save you a trip to the dealer.

No, the quarter-turn connector was simply added as a courtesy to our customers who want to connect the vacuum hoses to the carbs or throttle bodies before connecting to our digital carb sync tool. This helps to prevent accidentally pulling your device off the bike’s seat while digging around near the engine.

Each digit represents 0.113 inHg. Note that there is an offset from atmospheric pressure of 2.823inHg (25 digits). That is why the gauge reads approx. "25" when the engine is not running. Please note that the actual values are not important for balancing carbs or throttle bodies. What is important is consistency (balance) between all the measurements. All the values should be within 1-digit of each other for accuracy. Doing this will ensure your machine runs at it's optimum and will likely synchronize your engine with higher accuracy than your local mechanic's tools will allow. 

The magnet feature allows users with metal gas tanks to stick The Digi Sync to the gas tank.

Yes! We take pride in our American-made products. All of our units are produced locally here in the U.S.A. and we stand behind our products. The Digi Sync digital manometer is guaranteed against defects in materials and workmanship for a period of one year from the date of purchase. We will repair or replace the equipment (at our option) provided you have followed the usage instructions and not abused your device.

Yes. It is extremely rare that customers need to replace the hoses. However if needed, the vacuum tubing is 5/32" ID and can be purchased at any automotive supply store. Just be sure to keep the length of each hose as close as possible to each other.