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down, y oushould stopthemower a ndempty thebag.
Engine Model
This is a single cylinder, L-head, air-cooled engine. It is
a low emissions engine.
NOTE: In the state of California,
the 190000 series
engines covered in this manual are certified by the
California Air Resources
Board to meet emissions
standards
for 125 hours. Such certification
does not
grant the purchaser,
owner or operator of this engine
any
additional
warranties
with
respect
to
the
performance
or operational life of this engine. This
engine is warranted solely according to the product and
emissions warranties stated elsewhere in this manual
Bore
3 in. (76.20 mm)
Stroke
2-3/4 in. (69.85 mm)
Displacement 19.44 cu. in. (318.5 cc)
IMPORTANT: For practical operation, the horsepower
loading should not exceed 85% of rated horsepower.
Engine power will decrease 3-1/2% for each 1,000 feet
(300 meters) above sea level and 1% for each 10 F (5.6
C) above 77 F (25 C). Engine will operate satisfactorily
at an angle up to 15 degrees.
Tune-up
Specifications
Armature air gap 0.010 - 0.014 in. (0.25 - 0.36 mm)
Spark plug gap 0.030 in. (0.76 mm)
Valve clearance with valve springs installed and piston
1/4 inch (6 mm) past top dead center (check when
Engine Controls:
engine is cold).
Intake .005 - .007 in. (.13 - .18 mm)
Exhaust .007-
.009 in. (.18-
.23 mm)
Symbols
Used On The
Engine
Stop
For hazard symbol meanin(
Message
Symbol
Safety alert
,_
On off
Read owner's manual
Fuel shut-off
_,
Choke
I",1
Fuel
=_
O
s, refer to page 41.
®
1. 12 V electric starter
2. Oil drain plug
3. Fuel fill
4. Fuel tank
5. Oil fill/Dipstick
6. Finger guard
7. Rope handle
8. Air cleaner
9. _
Model
Type
Code
xxxxx
xxxx xx
xxxxxxxx
10. Muffled(Muffler
guard, if equipped)/
(Spark arrester, if equipped)
11. Spark plug wire
12. Rotating screen
13. Blower housing
14. Fuel filter
15. Carburetor
Figure 7
11
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