A motorcycle carburetor synchronization tool. Sensors at each carb,
live readout in any browser — phone, tablet, laptop. No app, no internet, no problem.
Flip the switch. The tool creates its own WiFi network — no internet needed.
02
Connect to WiFi
Join the CarbSync network from your phone's WiFi settings.
03
See live readouts
The page opens automatically. Watch the bars converge as you adjust.
Optional: Add it to your home screen for an app-like experience.
iPhone: Share → Add to Home Screen. Android: Menu → Install App.
It'll sit next to your other apps and open full-screen.
Interactive Demo
This is what your phone sees
Pick a reference cylinder, adjust the others to match. Bars turn green when within ±0.5 kPa of the reference. Live data below.
CARB SYNC
Adjusting to Carb 2
Spread from ref: 3.20 kPa
★ Reference: Carb 2
CARB 1
--
CARB 2
--
CARB 3
--
CARB 4
--
Tap a cylinder to set as reference
Try the buttons — watch the bars respond like the real engine pulses
Specifications
Built for the garage
±0.5
kPa sync accuracy
10x/sec
Sensor sampling rate
8+ hr
Battery life (18650)
2-4
Cylinder support
30 ft
Wireless range
Project Status
Build your own
✓ Complete
Firmware
ESP32 firmware with reference cylinder selection, persistence, 50-sample smoothing, and embedded web UI.
✓ Complete
Web Interface
PWA with live bar graphs, sync detection, and tap-to-set reference cylinder. Served directly from the ESP32.
✓ Tested
Hardware Build
Real-world tested on a 1975 Honda CB750. Synced carbs, smoother idle, less clatter.
In Progress
Enclosure & Form Factor
Designing a clean enclosure to package the build. Schematics and open source release to follow.