HONDA HS520AS - Manual (Page 48)

TECHNICAL & CONSUMER INFORMATION
46
Air Index
An Air Index Information hang tag/label is applied to engines certified
to an emission durability time period in accordance with the
requirements of the California Air Resources Board.
The bar graph is intended to provide you, our customer, the ability to
compare the emissions performance of available engines. The lower
the Air Index, the less pollution.
The durability description is intended to provide you with information
relating the engine’s emission durability period. The descriptive term
indicates the useful life period for the engine’s emission control
system. See your Emission Control System Warranty (page 52) for
additional information.
The Air Index Information hang tag/label must remain on the
snowthrower until it is sold. Remove the hang tag before operating the
snowthrower.
Descriptive Term Applicable to Emissions Durability Period
Moderate 50 hours (0–65 cc)
125 hours (greater than 65 cc)
Intermediate 125 hours (0–65 cc)
250 hours (greater than 65 cc)
Extended 300 hours (0–65 cc)
500 hours (greater than 65 cc)
HS520.book Page 46 Monday, May 14, 2001 12:36 PM