Listen to the sound clip Harley Davidson Fat Boy 067 Motorcycle - Onboard - Idling With Steady Idles In Neutral, And Turning Off - Engine Intake from Idle SFX Library:

This sound is from Idle SFX Library

Experience the symphony of sounds that make up the Idle's Library collection. From the low growl of a 2016 Harley Fat Bob's engine idling to the sharp whirr of a Shopsmith table saw with an 8-inch flat disc, each sound in this diverse colle…