April 5, 2026: LEMON Manuals is launched! Read the announcement.

Idle Speed & Mixture

IDLE SPEED & CO LEVEL

Application

Idle RPM

⁽¹⁾ CO Level %

4-Cylinder

810-890

.5-.7

6-Cylinder

660-740

.2-1.2

V8

750-850

.2-1.2

V12

530-630

.....

⁽¹⁾	Measured at exhaust manifold. See ADJUSTMENTS article for additional information.