First, pull the code and look at the vibration spectrum like a mystic reading rune stones. Then tune the cam phasing and adjust valve timing until the noise dies. If it still grumbles, treat it like a cat – wrap the intake with a velour pad. Remember, every whisper starts with a precise spark gap. Keep the throttle smooth, and the engine will thank you.

You're right, the quietest engines are those that never try to scream. I’ll keep the idle steady, trim the spark, and give the cam a calm rhythm. Patience is the secret rune, not just the parts. We'll silence that growl in measured steps.