This back lighted wide-band air/fuel ratio gauge will give you information on your engine to allow a more precise tuning. The programmable warning will tell you if your engine is running too lean or too rich. It is easy to install on either 2 or 4 stroke engines.
- Includes gauge, mounting hardware, O2 sensor and weld in sensor mount
- Must purchase 2-stroke sensor adapter separately, P/N 27-5721
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