Kohler — Fuel System Tests
Testing & diagnosis
From a Kohler service manual covering: 14690-12, CV173, CV200, CV224. Check it applies to your exact model before use.
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Before you start
- Explosive Fuel can cause fires and severe burns. Do not fill fuel tank while engine is hot or running.
Procedure
- Check for fuel in combustion chamber: disconnect and ground spark plug lead, close choke, crank engine several times, remove spark plug and check for fuel at tip.
- Check fuel flow from tank to carburetor: remove fuel line from inlet fitting of carburetor.
- Use an approved fuel container to catch fuel and hold line below bottom of tank to observe fuel flow.
- If fuel flows, check for faulty carburetor; if no fuel flows, check fuel tank vent, outlet filter threaded into tank, and fuel line.
Tools required
- Approved fuel container Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
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.