I also used to be very alarmed when people wanted a 3 cylinder piece of tractor engineering to sound and start like a duesenberg 16 cyl engine surrounded by a noise canopy. completely silent like a tomb and when revved makes a sewing machine sound (for peeps who have not heard a doozy, the closest is the mercedes M103 six cylinder.
somehow the same customers loved the sound of dead cold engine struggling to idle because (micharr halka) and then had no issues hearing the constant drone of the stupid cooling fan because it was rigged directly, All because their favorite ustaad gave them this story while offering opium laced tea.