Kohler KS540 [57/92] Emission compliant systems

Emission Compliant Systems

22 690 01 Rev. -- KohlerEngines.com

EVAPORATIVE EMISSION COMPLIANT SYSTEM

Carbon Canister System

A Fuel Tank Cap B Fuel Tank C

Roll Over Valve

(ROV)

D Carbon Canister

Canister Breather

Filter

F To Carburetor

Operation

Fuel vapors travel from fuel tank through tubing to

carbon canister. On intake stroke of engine fuel vapors

are drawn in through a port in carburetor and burned

with fuel charge.

Maintenance

On Kohler-supplied canisters, breather ﬁ lter can be

removed and cleaned with hot soapy water, dried and

reinstalled. Do not oil breather screen. This is done

periodically or if system operation is suspect. Carbon

canister is sealed and requires no maintenance.

In some applications or installations, OEM will have

installed a diﬀ erent canister or fuel vapor recovery

system. See OEM equipment documentation for service

or maintenance information.

For engine to be Tier III compliant, it may be ﬁ tted with a Kohler supplied canister vapor recovery system, or a system

developed and installed by Original Equipment Manufacturer (OEM). Details on Kohler system are included below.