Engine Emission Related Information - Kubota ZG332 Operator's Manual

ENGINE EMISSION RELATED INFORMATION

C The WG972-G-E3 engine conforms to U.S. EPA and California emission regulations for off-road large or small
SI engines.
A Emission compliance period: 1000 HOURS
A CARB emissions durability period: EXTENDED
C Catalytic muffler
The WG972-G-E3 engine must use KUBOTA catalytic muffler (EG806-1211-0).
C Carburetor (WG972-G-E3)
The carburetor is tamper resistant; the idle mixture screw has been covered by tamper plug after adjustment at the
factory.
You CANNOT adjust this screw.
C High altitude operation
A Altitude compensation kit is applied for EPA and CARB certified engines only.
EPA and CARB emission regulations require the ultimate users of non-road SI engine, as their obligation, to adjust the
emissions by installing the appropriate genuine altitude compensation kit. And the engine manufacturer must provide
such a kit when the engine is operated at an altitude that exceeds the standard level, as guarantied by the engine
manufacturer. For this purpose, KUBOTA has prepared a genuine altitude compensation kit described below. The
ultimate users of SI engines must comply with the regulations through the proper installation of the appropriate altitude
compensation kit for the altitude range where the engine will be operated.
*) Prepared for the users who have lost original carburetor's jet.
Altitude compensation kit part number: Please contact your local KUBOTA dealer and specify your engine type and
engine serial number.
Please consult your local KUBOTA dealer for further information on the altitude compensation kit.
Consult your local KUBOTA dealer for further information on this procedure.
ENGINE EMISSION RELATED INFORMATION 91