Kohler — Nikki Carburetor Low Idle Speed Setting
Adjustments · Carburetor low idle speed screw
From a Kohler service manual covering: CV11, CV12.5, CV13, CV14, CV15, CV16, CV460-465, CV490-495. Check it applies to your exact model before use.
Applies to: Kohler CV11, Kohler CV460-465, Kohler CV490-495
Before you start
- Certified engines have the idle mixture preset and sealed at the factory.
Procedure
- Start the engine and run at half throttle 5 to 10 minutes to warm up.
- Place throttle control into the "idle" or "slow" position.
- Set the low idle speed to 1200 RPM (±75 RPM) by turning the low idle speed adjusting screw in or out.
- Check the speed using a tachometer.
Tools required
- Tachometer Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Low idle speed 1200 RPM (±75 RPM)
Full service-parts list: Kohler CV11 →, Kohler CV460-465 →, Kohler CV490-495 →
Source: Kohler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.