Yamaha EH64 Owner's Manual page 4

(California only)
To show compliance with California emission regulations, a hangtag has been provided
displaying the Air Index level and durability period of this engine.
The Air Index level defines how clean an engine's exhaust is over a period of time. A bar graph
scaled from "0" (most clean) to "10" (least clean) is used to show an engine's Air Index level. A
lower Air Index level represents cleaner exhaust from an engine.
The period of time (in hours) that the Air Index level is measured is known as the durability
period. Depending on the size of the engine, a selection of time periods can be used to
measure the Air Index level (see below).
Descriptive Term
Moderate
Intermediate
Extended
Notice : This hangtag must remain on this engine or piece of equipment, and only be
removed by the ultimate purchaser before operation.
Notice : FEDERAL EMISSION COMPONENT DEFECT WARRANTY and CALIFORNIA EMISSION CONTROL
WARRANTY are applicable to only those engines/generators complied with EPA (Environmental Protection
Agency) and CARB (California Air Resources Board) emission regulations in the U.S.A.
Notice : To the engines/generators exported to and used in the countries other than the U.S.A., warranty service
shall be performed by the distributor in each country in accordance with the standard YAMAHA engine/
generator warranty policy as applicable.
AIR INDEX
Applicable to Emissions Durability Period
- 50 hours (engine from 0 to 80 cc)
125 hours (engine greater than 80 cc)
- 125 hours (engine from 0 to 80 cc)
250 hours (engine greater than 80 cc)
- 300 hours (engine from 0 to 80 cc)
500 hours (engine greater than 80 cc)
1000 hours (225 cc and greater)