18
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 SYSTEM WARRANTY
) for
additional information.
Specifications
Mower Features
Dimensions and Weights
* Cutting height set at 1 in (27 mm) and handlebar set in highest
position.
** Including grass bag
Engine Design and Performance
Transmission Design and Performance
Maintenance
Descriptive Term
Applicable to Emissions
Durability Period
Moderate
50 hours (0 ~ 80 cc)
125 hours (greater than 80 cc)
Intermediate
125 hours (0 ~ 80 cc)
250 hours (greater than 80 cc)
Extended
300 hours (0 ~ 80 cc)
500 hours (greater than 80 cc)
1000 hours (225 cc and greater)
HRN216VKA
Honda rotary mower, 21-inch mower deck,
3-in-1 Clip Director
®
, Smart Drive variable
speed transmission, flywheel brake, fixed
throttle, Auto Choke System
Length
61.0 in (1,550 mm)
Width
22.6 in (575 mm)
Overall height*
40.8 in (1,037 mm)
Dry mass [weight]**
77.8 lb (35.3 kg)
Cutting width
20.9 in (530 mm)
Cutting heights
1 ~ 4 in (27 ~ 100 mm)
Wheelbase
26.6 in (676 mm)
Model
GCV170
Type
4-stroke, overhead-valve,
single-cylinder, air-cooled
Displacement
10.1 cu in (166 cc)
Bore and stroke
2.36 x 2.32 in (60 x 59 mm)
Compression ratio
8.0:1
Ignition system
Transistorized magneto
Transmission type
Variable speed
Ground speeds
0 ~ 4.11 mph (0 ~ 1.84 m/s)
Item
Description Page
Fuel
Unleaded gasoline with a pump
octane rating of 86 or higher containing
no more than 10% ethanol by volume
Capacity: 0.24 US gal (0.91 L)
to prevent
fuel-related problems
Blade Bolt
Torque
36 ~ 43 ft-lb (49 ~ 59 N•m)
Engine Oil
SAE 10W-30, API SJ or later
Capacity: 13.5 oz (0.40 L)
Refill amount: 12.0 ~ 13.5 oz
(0.35 ~ 0.40 L)*
Spark Plug
Type: NGK - BPR5ES
Gap: 0.028 ~ 0.031 in (0.7 ~ 0.8 mm)
Smart Drive
Cable
Adjust for proper operation.
Shop
manual
Maximum
Governed
Speed
2,950 ~ 3,100 rpm **
Shop
manual
Valve
clearance
(cold)
Intake: 0.10 ± 0.02 mm
Exhaust: 0.10 ± 0.02 mm
Shop
manual
*
Actual amount will vary due to residual oil in the engine. Always
use the dipstick to confirm the actual level (
** Do not try to increase the engine speed above the maximum
governed speed; the blades could fracture and come apart.