Uploaded April 2026 | Updated September 2026, 2 weeks ago

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If your motorcycle isn’t running right, one of the most important things to figure out is whether it’s running rich or lean. In this video,
I walk through a real-world diagnosis on a Honda Valkyrie and show you exactly how to determine what the engine is doing.

This isn’t guesswork — this is a step-by-step method you can use on your own bike to pinpoint fuel mixture issues with confidence.

Whether you're dealing with poor throttle response, high idle, backfire and popping or inconsistent running, understanding rich vs lean conditions is key to getting your bike dialed in.

In this video:
- How to tell if your motorcycle is running rich or lean
- Backfire Diagnosing
- Real diagnostic process on a Honda Valkyrie
- What symptoms to look for
- How to make accurate mixture adjustments

If you're working on your own bike and get stuck, this is exactly the kind of thing we work through in the Inner Circle during live Q&A sessions.
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