People ask why should I have my bike dynoed ? The correct response is, "to make sure it is running to its peak performance." We then hear, "well it runs fine to me," or "it's all stock so it should be fine." The truth is that many motorcycles today are coming from the factory in a very lean state of tune.

Motorcycle manufacturers have very stringent EPA guidelines to abide to for emission purposes. To comply with EPA Standards, manufacturers are sending these motorcycles out of the factory with a very lean air/fuel ratio which will cause the bike to run hotter than normal and may create premature wear and tear on many internal engine components. This is especially true with air cooled v-twin motors.

The only way to know if the air/fuel ratio is correct for your bike is to put it on a dyno and run it under a controlled load while monitoring the air/fuel ratio. People also add performance exhaust systems, big volume air cleaners, and other performance enhancers. They then install a fuel programmer with some generic fuel curve mapping that was created on a dyno in another state where the elevation, humidity, air density, fuel quality are all completely different from where you ride your bike.