Briggs & Stratton 146400 - Manual (Page 5)

Section
4
A D J U S T M E N T S (cont’d)
CHOKE-A-iVlATIC CARBURETOR CONTROL
ADJUSTMENTS
Proper choke and stop switch operation is dependent
upon proper adjustment of remote control on the pow­
ered equipment.
To Check Operation of Choke-A-Matic Controls:
a. Remove air cleaner.
b. Move remote control lever to "Choke" position. The
carburetor choke should be closed.
c. Move remote control to "Stop" p o s i t i o n . Lever
should make good contact with stop switch.
To Adjust:
Place remote control lever on equipment in FAST (high
speed) position. Loosen control casing clamp screw
"B". Move control casing "A" and wire until lever
"D" touches choke operating link at "C". Tighten
casing clamp screw "B". Replace air cleaner.
SPEED CONTROL ADJUSTMENTS
The recommended operating speed range is 1800 to
3600 RPM. The standard speed setting (no load) Is
3600 RPM. Idle speed is 1750 RPM.
Refer to illustration. Select the control on your engine.
To increase engine speed move control in direction
shown by arrow.
Section
5
GENERAL INFORMATION
ENGINE DESIGN - Your engine is 4 cycle, single cylinder and L-head. It is air cooled.
Bore
Stroke
Displacement
Horsepower
Torque (Ft. Lbs.)
MODEL SERIES
146400 to 146457
2-3/4"
2-3/8"
14.11 cu. in.
6.0 H.P. max. @ 3600 RPM
9.25 max. @ 2900 RPM
MODEL SERIES
170400 to 170457
3"
2-3/8"
16.79 cu. in.
7.0 H.P. max. @ 3600 RPM
11.0 max. @ 2600 RPM
MODEL SERIES
190400 to 190457
3"
2-3/4"
19.44 cu. in.
8.0 H.P. max. @ 3600 RPM
12.7 max. @ 2500 RPM
The horsepower ratings listed above are established
in accordance with the Society of Automotive Engi­
neers Test Code-J607. For practical operation, the
horsepower loading should not exceed 85% of these
ratings. Engine power will decrease 314% for each
1,000 feet above sea level and 1 % for each 10° above
60° F.
TUNE-UP SPECIFICATIONS
Spark Plug Type A.C. Autolite Champion
Short Plug CS-45 A7N CJ-8
Long Plug GC-46 A71 J-8
Spark Plug Gap............................... .030'
Ignition Point Gap........................... .020^
Intake Valve Clearance . . . . .................005" -.007'
Exhaust Valve Clearance .009" -.011'
STORAGE INSTRUCTIONS
Engines to be stored over 30 days should be complete­
ly drained of fuel to prevent gum deposits forming on
essential carburetor parts, fuel filter, fuel lines and
tank.
a. D r a i n fuel tank completely and clean fuel filter.
(See Section 3).
b. Operate engine until gasoline in carburetor is com­
pletely consumed.
c. While engine is still warm, drain oil from crankcase.
Refill with fresh oil.
d. Remove spark plug, pour one ounce (2 or 3 table­
spoons) of SAE-30 oil into cylinder and crank slow­
ly to distribute oil. Replace spark plug.
e. Clean dirt and chaff from cylinder head fins and
blower housing. (See Section 3).