MTD 94-2105-B - Manual (Page 20)

CONTROL ADJUSTMENTS
The throttle control must be properly adjusted to stop,
start and operate the engine at maximum speed.
The acceptable operating speed range is 1800 to 3600
RPM. Idle speed is 1750 RPM. The manufacturer of
the equipment on which the engine is used, specifies
the top governed no load speed at which the engine
may be operated. DO NOT EXCEED this speed.
To Adjust Throttle Control;
1. Loosen the cable clamp screw. See illustration.
2. With the throttle control in FAST position and the
cable connected to the adapter lever, push the
cable through the cable clamp In the direction
shown until the adapter lever is as far up as it will
go.
3. Tighten the cable clamp screw.
4. Check that the engine stops when throttle control
is moved to STOP position. If engine does not stop,
loosen cable clamp screw and readjust by pulling
cable backward slightly until engine stops.
Retighten cable clamp screw.
Cable Clamp
^ Screw
Adapter
Lever
SECTION 5
GENERAL INFORMATION'
ENGINE DESIGN
This engine is single-cylinder L-head, air-cooled type.
MODEL SERIES 130202
Bore............................................................ 2-9/16" {65.09 mm)
Stroke......................................................... 2-7/16" (61.91 mm)
Displacement.............................. 12.57 cu. in. (206 cc)
Horsepower Max..............................5.0 @ 3600 RPM
Torque (Ft.-Lbs.) Max....................... 7.66 @ 2900 RPM
The horsepower ratings listed are established in
accordance with the Society of Automotive Engineers
Test Code-J607. For practical operation, the
horsepower loading should not exceed 85% of these
ratings. Engine power will decrease, 3'/2% for each
1,000 feet above sea level and 1 % for each 10® above
60® F.
In some areas, local law requires the use of a resistor
spark plug so as to suppress ignition signals. If an
engine was originally equipped with a resistor spark
plug, be sure to use the same type of spark plug for
replacement.
Major engine repairs should not be attempted unless
you have the proper tools and a thorough knowledge
of internal combustion engines.
TUNE-UP SPECIFICATIONS
Spark Plug Type_________ Champion Autolite
Short Plug CJ-8 235
Long Plug J-8C 295
Resistor Short Plug RCJ-8 245
Resistor Long Plug RJ-8C 306
Spark Plug Gap....................................................... 030"
Intake Valve Clearance................................. 005"-.007"
Exhaust Valve Clearance.............................. 009"-.011"
STORAGE INSTRUCTIONS
Engines to be stored over 30 days should be completely
drained of fuel to prevent gum deposits forming on
essential carburetor parts, fuel filter and tank.
NOTE: The use of a fuel additive, such as STABIL, or
an equivalent, will minimize the formation of fuel gum
deposits during storage. Such an additive may be
added to the gasoline in the fuel tank of the engine,
or to the gasoline in a storage container.
a. All fuel should be removed from the tank. Run the
engine until it stops from lack of fuel.
b. While engine is still warm, drain oil from crankcase.
Refill with fresh oil.
c. Remove spark plug, pour approximately V2 ounce
(15 cc) of engine oil into cylinder and crank slowly
to distribute oil. Replace spark plug.
d. Clean dirt and chaff from cylinder, cylinder head
fins, blower housing, rotating screen and muffler
areas.
e. Store in a clean, dry area.
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