Kohler KS595 Service Manual

58
Emission Compliant Systems
KohlerEngines.com 22 690 01 Rev. --
SECONDARY EMISSION COMPLIANT SYSTEM
Secondary Air Induction System
A
A
B
C
D
A
Secondary Air
Valve Assembly
B
Hose To Exhaust
Manifold
C Hose To Carburetor D Inlet Screen
For engine to be Tier III compliant, it may be fi tted with a secondary air induction system (SAI).
Operation
Intake pulse of engine activates secondary air valve.
Air is drawn through an inlet screen of secondary air
valve. Air is then drawn into exhaust manifold and
muffl er where it mixes with any unburned hydrocarbons,
which then burn in heat of muffl er. A hose is connected
between a carburetor port and a diaphragm chamber
in secondary air valve. Carburetor vacuum moves
diaphragm to close valve when air induction is not
required, primary idle.
Maintenance
Air inlet screen in secondary air valve can be removed,
cleaned, and reinstalled. If inspection of system reveals
any damage or decomposition of hoses, secondary air
valve, or exhaust system, parts should be replaced.

Kohler KS595 Specifications

General

Brand	Kohler
Model	KS595
Category	Engine
Language	English