Idle Speed

With engine at normal operating temperature, remove air cleaner cover and oil damper caps. Check that suction pistons in carburetors can be raised smoothly. Check damper oil level and add engine oil if necessary. Loosen balance adjusting screw and throttle opener adjusting screw completely. Adjust idle to 750 RPM by turning idle speed adjusting screw with transmission in "N". On automatic transmission models shift to "D" and check that idle speed decreases to 600 RPM.