17
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 (page 22) for
additional information.
Specifications
Mower Features
Dimensions and Weights
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)
HRX2175VYA Honda rotary mower, 21-inch mower
deck, Clip Director, Select Drive variable
speed transmission, Roto-Stop blade
brake clutch, Auto Choke System
Length 64.5 in (1638 mm)
Width 23 in (585 mm)
Overall height * 40.0 in (1016 mm)
Dry weight 96.1 lb (43.6 kg)
Cutting width 21.0 in (530 mm)
Cutting heights (7) 3/4 ~ 4 in (20 ~ 102 mm)
* 1-1/4 inch cutting height and handle in highest position
Model GCV190
Type 4-stroke, overhead-cam,
single-cylinder, air-cooled
Displacement 11.4 cu in (186 cc)
Bore and stroke 2.71 x 1.97 in (69.0 x 50.0 mm)
Compression ratio 8.5:1
Ignition system Transistorized magneto
Transmission type Variable speed
Ground speeds 0 ~ 4.0 mph
(0 ~ 1.78 m/s)
Fuel Unleaded gasoline with a pump
octane rating of 86 or higher containing
no more than 10% ethanol by volume
Capacity: 0.25 US gal (0.93 L)
See “AVOIDING FUEL-RELATED
PROBLEMS” on page 18
page 7
Blade Bolt
Torque
36 ~ 43 ft-lb (49 ~ 59 N•m) page 11
Engine Oil SAE 10W-30, API SJ or later
Capacity: 17.0 oz (0.50 L)
Refill amount: 12.0 ~ 13.5 oz
(0.35 ~ 0.40 L)*
page 12
Spark Plug Type: NGK - BPR5ES
Gap: 0.028 ~ 0.031 in (0.7 ~ 0.8 mm)
page 13
Select Drive
Cable
Adjust for proper operation. page 13
Idle speed
(lever at
SLOW)
1,700 +/- 150 rpm Shop
manual
Maximum
Governed
Speed
3,100 +0/-150 rpm ** Shop
manual
Valve
clearance
(cold)
Intake: 0.15 ± 0.04 mm
Exhaust: 0.20 ± 0.04 mm
Shop
manual
* Actual amount will vary due to residual oil in the engine. Always
use the dipstick to confirm the actual level (page 6).
**Do not try to increase the engine speed above the maximum
governed speed; the blades could fracture and come apart.
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