Kohler — Low Idle Speed (RPM) Adjustment
Adjustments · Carburetor
From a Kohler service manual covering: CV17, CV18, CV20, CV22, CV23, CV25, CV620, CV621, CV640, CV641, CV670, CV680…. Check it applies to your exact model before use.
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Procedure
- Make adjustment only after engine has warmed up.
- Place throttle control into idle or slow position.
- Turn low idle speed adjusting screw in or out to obtain 1200 RPM (± 75 RPM).
Tools required
- Tachometer Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 1200 RPM (± 75 RPM)
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.