Kohler — Carburetor Adjustment
Adjustments
From a Kohler service manual covering: K482, K532, K582, K662. Check it applies to your exact model before use.
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Before you start
- Do not force screws; this damages needle valves
Procedure
- Stop engine; turn Main Fuel and Idle Fuel needles in until they bottom gently
- Back Main Fuel needle out 3 turns
- Back Idle Fuel needle out 1-1/4 turns
- Start engine and reach normal operating temperature
- At full throttle and load, set Main Fuel halfway between lean and overrich
- At about 1000 RPM idle, set Idle Fuel for smooth idle
- Recheck and make final adjustments
Tools required
- Tachometer Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Main Fuel 3 turns open preliminary
- Idle Fuel 1-1/4 turns open preliminary
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.