Kohler — Carburetor Float Setting (Keihin Only)
Adjustments
From a Kohler service manual covering: ZT710, ZT720, ZT730, ZT740. Check it applies to your exact model before use.
Applies to: Kohler ZT710, Kohler ZT720, Kohler ZT730, Kohler ZT740
Procedure
- Clean exterior surfaces. Remove bowl retaining screws or solenoid assembly and separate fuel bowl from carburetor. Do not damage fuel bowl O-rings.
- Remove float pin (or screw) and inlet needle. Seat for inlet needle is not serviceable and should not be removed.
- Attach inlet needle to metal tang of float with wire clip. Install new float and inlet needle down into seat and carburetor body.
- Hold carburetor body so float assembly hangs vertically and rests lightly against fuel inlet needle; inlet needle fully seated without depressing center pin.
- Correct float height is 12.0 mm (0.472 in.) from float bottom to body of carburetor. Adjust by carefully bending metal tang of float.
Specs & values
- Float height 12.0 mm (0.472 in.)
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.