Kohler — LP Gas Carburetor Main Fuel Mixture Adjustment
Adjustments · LP Carburetor
From a Kohler operator's manual covering: 4CFKM, 4CFKM/CFKMR, 4CKM, 4CKM/CKMR, 5CKM, 5CKM/CKMR, TP-5393. Check it applies to your exact model before use.
Applies to: Kohler 4 and 5 kW, Kohler 4CFKM, Kohler 4CKM, Kohler 5CKM, Kohler M18 / M20 engine, Kohler M18 engine, Kohler M20 engine
Procedure
- Turn MAIN FUEL valve clockwise until it bottoms lightly (do not force), then back out 1 turn.
- With engine warm at rated rpm under full load, turn MAIN FUEL valve in until engine slows (lean).
- Turn valve out until engine regains full speed (about 1/8 turn).
Specs & values
- Main fuel preliminary 1 turn out
Full service-parts list: Kohler 4 and 5 kW →, Kohler 4CFKM →, Kohler 4CKM →, Kohler 5CKM →
Source: Kohler operator's 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.