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Koso Wideband Air/Fuel Ratio Meter

(1 review)

Item: 349351

$291.01

Universal Fit: Review specifications carefully.

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Koso Wideband Air/Fuel Ratio Meter


  • Highly visible, backlit digital display
  • Allows more precise tuning
  • Programmable warning alerts rider of too lean or too rich ratio
  • Displays ratio between 10.0-24.0
  • Includes Bosch O2 sensor, sensor bung, sensor bung cap and gauge bracket
  • Display measures 99.5mm W x 42mm H x 22.5mm D
  • Sensor harness measures 7 ft. long
Specification Details
Dimensions 99.5mm x 42mm x 22.5mm
Harness Length 7 ft.

Customer Reviews

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Nice addition

By   on  Verified Purchaser

I installed this on my scooter and it works great. I love not having to guess at tuning the carb. This was a big investment so keeping it running properly is a must and this product helps. It's very expensive but worth it.


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Questions & Answers

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Will this kit work on my 1985 Suzuki gs 1150e it a carbureted motor

Yes, you can add this to pretty much any gas-powered engine on earth and use it to measure the air/fuel ratio. Just weld on the included sensor bung, add 12V power (obviously, available on your bike) and you'll be able to take those measurements in realtime.

By Tom
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Will this work on a 2 stroke snowmobile with a turbo

2022 arctic cat alpha hardcore 800cc with silber turbo installed.

You should be able to make this kit work for your needs, but you'll need to add a Koso O2 Sensor Bung Adapter in order to work with any two-stroke engine. With that, and an evening or two in the garage, you should be all set!

By Tom
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