Know Your Unit; Assembly Instructions; Oil And Fuel Information; Starting/Stopping Instructions - MTD Yard Machines Y2500 Guia De Inicio Rapido

KNOW YOUR UNIT

APPLICATIONS
As a trimmer:
• Cutting grass and light weeds.
• Edging
• Decorative trimming around trees,
fences, etc.
Starter Rope Grip
On/Off Control
Swedge Coupler
Shaft Housing
Line Cutting
Blade
Cutting Head Shield
Cutting Head

ASSEMBLY INSTRUCTIONS

INSTALL CUTTING ATTACHMENT SHIELD
WARNING:
To prevent serious personal injury, never operate the trimmer without the cutting
attachment shield in place.
Use the following instructions if the cutting attachment shield on the unit is not installed. Use only the instructions that
apply to the type of shaft and shield that the unit is equipped with.
1. Place the cutting attachment shield onto the
shaft housing. Be sure the guard mounting
bracket slides into the slot on the edge of the
cutting shield. Rotate the shield into place,
counterclockwise (Fig. 1). The holes in the guard
mounting bracket and cutting attachment shield
will line up.
2. From inside the cutting attachment shield, push
the square bolt through the hole until the
threaded end protrudes through the guard
mounting bracket (Fig. 2).
3. Put the washer on the bolt, then screw the wing
nut onto the bolt and tighten.
INSTALL AND ADJUST THE D-HANDLE
1. Push the D-handle down onto the shaft housing
(Fig. 3). The hex bolt hole in the handle should
be on the left side.
2. Insert the bolt into the hex hole in the handle
and push through. Place the washer on the bolt,
then screw the wing nut onto the bolt. Do not
tighten until making the handle adjustment.
3. Rotate the D-handle to place the grip above the top of the shaft housing. Place it
a minimum of 6 inches (15.24 cm) from the end of the shaft grip.
4. While holding the unit in the operating position (Fig. 9), move the D-handle to the
location that provides the best grip.
5. Tighten the wing nut until the D-handle is secure.
INSTALLING THE LOWER BOOM AND CUTTING HEAD
1. Using the 3/16 in allen wrench provided with the unit, make sure the allen bolt is
loose (Fig. 5).
2. While firmly holding the upper boom, push it straight into the lower boom and coupler (Fig. 4).
NOTE: Make sure to align the release button with the guide recess prior to installation of the lower boom.
3. Tighten the allen bolt using the 3/16 allen wrench provided with the unit until the lower swedge boom is firmly in place.

OIL AND FUEL INFORMATION

OIL AND FUEL MIXING INSTRUCTIONS
Old and/or improperly mixed fuel are the main reasons for the unit not running properly. Be sure to use fresh, clean
unleaded fuel. Follow the instructions carefully for the proper fuel/oil mixture.
DEFINITION OF BLENDED FUELS
WARNING:
It has been proven that fuel containing greater than 15% ethanol will likely damage this engine
and void the warranty.
Today's fuels are often a blend of gasoline and oxygenates such as ethanol,
methanol, or MTBE (ether). Alcohol-blended fuel absorbs water. As little as 1%
water in the fuel can make fuel and oil separate. It forms acids when stored.
When using alcohol-blended fuel, use fresh fuel (less than 60 days old).
USING BLENDED FUELS
If choosing to use a blended fuel, or its use is unavoidable, follow
recommended precautions:
• Always use the fresh fuel mix explained in the operator's manual
• Always agitate the fuel mix before fueling the unit
• Drain the tank and run the engine dry before storing the unit
USING FUEL ADDITIVES
CAUTION:
For proper engine operation and maximum reliability, pay strict attention to the oil and fuel
mixing instructions on the 2-cycle oil container. Using improperly mixed fuel can severely damage the engine.
The bottle of 2-cycle oil contains a fuel additive which will help inhibit corrosion and minimize the formation of gum
deposits. It is recommended to use our 2-cycle oil with this unit.
If unavailable, use a good 2-cycle oil designed for air-cooled engines along with a fuel additive, such as STA-BIL® Gas
Stabilizer or an equivalent. Add 0.8 oz. (23 ml.) of fuel additive per gallon of fuel according to the instructions on the
container. NEVER add fuel additives directly to the unit's fuel tank.
Thoroughly mix the proper ratio of 2-cycle engine oil with unleaded fuel in a separate fuel can. Use a 40:1 fuel/oil ratio.
Do not mix them directly in the engine fuel tank. See the table for specific gas and oil mixing ratios.
NOTE: One gallon (3.8 liters) of unleaded fuel mixed with one 3.2 oz. (95 ml.) bottle of 2-cycle oil makes a 40:1 fuel/oil ratio.
NOTE: Dispose of the old fuel/oil mix in accordance to Federal, State and Local regulations.
WARNING:
Gasoline is extremely flammable. Ignited vapors may explode. Always stop the engine
and allow it to cool before filling the fuel tank. Do not smoke while filling the tank. Keep sparks and open
flames at a distance from the area.
FUELING THE UNIT
WARNING:
Remove fuel cap slowly to avoid injury from fuel spray. Never operate the unit without the
fuel cap securely in place.
Spark Plug
Muffler
Choke Lever
Air Filter Cover
Fuel Cap
Shaft Grip
Throttle Control
D-Handle
Cutting Mount
Shield Bracket
Square Bolt
Fig. 1
Wing Nut Grip Release Button
Washer
Min 6 in.
(15.32 mm)
Handle
Upper Boom
Bolt
Fig. 3
UNLEADED GAS
1 GALLON US
(3.8 LITERS)
1 LITER
MIXING RATIO - 40:1
WARNING:
Avoid creating a source of ignition for spilled fuel. Do not start the engine until fuel vapors dissipate.
1. Turn unit on its side, with the fuel cap facing up, and remove the fuel cap.
2. Place the gas container's spout into the fill hole on the fuel tank and fill the tank.
NOTE: Do not overfill the tank.
3. Wipe up any gasoline that may have spilled.
4. Reinstall the fuel cap.
5. Move the unit at least 30 ft. (9.1 m) from the fueling source and site before starting the engine.
WARNING:
Carbon monoxide exhaust fumes can be lethal in a confined area.
WARNING:
starting position when pulling the starter rope (Fig. 8). To avoid serious
injury, the operator and unit must be in a stable position while starting.
STARTING INSTRUCTIONS
1. Mix fuel with oil. Fill fuel tank with fuel/oil mixture. See Oil and Fuel Mixing
Primer
Instructions.
Bulb
2. Fill the fuel tank with fresh, clean unleaded fuel. Refer to Fueling the Unit.
NOTE: There is no need to turn the unit on. The On/Off Control is in the ON ( I )
position at all times (Fig. 6).
3. Fully press and release the primer bulb 10 times, slowly. Some amount of fuel
should be visible in the primer bulb and fuel lines (Fig. 7). If fuel can not be seen in
the bulb, press and release the bulb until fuel is visible.
4. Place the choke lever in Position 1 (Fig. 7).
5. Crouch in the starting position (Fig. 8). Squeeze the throttle control lever. Pull the
starter rope 5 times.
6. Place the choke lever in Position 2 (Fig. 7)
7. Squeeze the throttle control, pull the starter rope in a controlled motion 3 to 5
times to start engine.
8. Keep the throttle squeezed and allow the engine to warm up for 30 to 60 seconds.
9. Continue squeezing the throttle control, move the choke lever to Position 3 (Fig. 7)
and continue warming the engine for an additional 60 seconds. The unit may be
used during this time.
NOTE: Unit is properly warmed up when engine accelerates without hesitation.
IF... the engine hesitates, return the choke lever to Position 2 (Fig. 7) and continue warm-up.
IF... the engine does not start, go back to step 3.
IF... the engine fails to start after a few attempts, place the choke lever in Position 3 and squeeze the throttle
control. Pull the starter rope out with a controlled and steady motion 3 to 8 times. The engine should start. If
not, repeat.
IF WARM... If the engine is already warm, start the unit with the choke lever in Position 2. After the unit starts, move
the choke lever to Position 3.
STOPPING INSTRUCTIONS
1. Release the throttle control and allow the engine to cool down by idling.
2. Press and hold the On/Off Control switch in the OFF (O) position until the unit comes to a complete stop (Fig. 6).
HOLDING THE UNIT
WARNING: Always wear eye, hearing, foot and body protection to reduce the risk of injury when operating
this unit.
Washer
Before operating the unit, stand in the operating position (Fig. 9). Check for the
following:
• The operator is wearing eye protection and proper clothing
• With a slightly-bent right arm, the operator's hand is holding the shaft grip
• The operator's left arm is straight, the left hand holding the D-handle
Wing
Nut
• The unit is at waist level
• The cutting head is parallel to the ground and easily contacts the grass without
Fig. 2
the need to bend over
ADJUSTING TRIMMING LINE LENGTH
Guide Recess
WARNING:
premature engine failure and / or unit damage.
The Bump Head™ cutting head allows the release of trimming line without stopping the engine. To release more line,
lightly tap the cutting head on the ground (Fig. 10) while operating the unit at high speed.
NOTE: Always keep the trimming line fully extended. Line release becomes more difficult when the cutting line
Lower Boom
gets shorter.
Fig. 4
Each time the head is bumped, about 1 inch (25.4 mm) of trimming line releases. A blade in the cutting head shield will
cut the line to the proper length if any excess line is released.
For best results, tap the bump knob on bare ground or hard soil. If attempting a line release in tall grass, the engine
may stall. Always keep the trimming line fully extended. Line release becomes more difficult when the cutting line gets
shorter.
NOTE: Do not rest the Bump Head™ on the ground while the unit is running.
Allen
Some line breakage will occur from:
Screw
• Entanglement with foreign matter
Allen Wrench
• Normal line fatigue
Fig. 5
• Attempting to cut thick, stalky weeds
• Forcing the line into objects such as walls or fence posts
TIPS FOR BEST TRIMMING RESULTS
• Keep the cutting head parallel to the ground.
• Do not force the cutting head. Allow the tip of the line to do the cutting, especially along walls. Cutting with more
than the tip will reduce cutting efficiency and may overload the engine.
• Cut grass over 8 inches (200 mm) by working from top to bottom in small increments to avoid premature line wear
or engine drag.
• Cut from right to left whenever possible. Cutting to the left improves the unit's cutting efficiency. Clippings are
thrown away from the operator.
• Slowly move the unit into and out of the cutting area at the desired height. Move either in a forward-backward or
side-to-side motion. Cutting shorter lengths produces the best results.
• Trim only when grass and weeds are dry.
• The life of the cutting line is dependent upon:
• Following the trimming techniques
• What vegetation is being cut
• Where vegetation is cut
For example, the line will wear faster when trimming against a foundation wall as
opposed to trimming around a tree.
DECORATIVE TRIMMING
2 CYCLE OIL
Decorative trimming is accomplished by removing all vegetation around trees, posts, fences, etc..
3.2 FL. OZ.
Rotate the whole unit so that the cutting head is at a 30° angle to the ground (Fig. 11).
(95 ml)
25 ml
MAINTENANCE SCHEDULE
WARNING:
service and repair a cool unit. Disconnect the spark plug wire to ensure that the unit cannot start.
Perform these required maintenance procedures at the frequency stated in the table. These procedures should also be
a part of any seasonal tune-up.
NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures
take your unit to any non-road engine repair establishment, individual or authorized service dealer.
NOTE: Maintenance, replacement, or repair of the emission control devices and system may be performed by any
non-road engine repair establishment, individual or authorized service dealer.
In order to assure peak performance of your engine, inspection of the engine exhaust port may be necessary after 30
hours of operation. If you notice lost RPM, poor performance or general lack of acceleration, this service may be
required. If you feel your engine is in need of this inspection, refer service to any non-road engine repair establishment,
individual or authorized service dealer for repair. DO NOT attempt to perform this process yourself as engine damage
may result from contaminants involved in the cleaning process for the port.
FREQUENCY
Before starting engine
Every 10 hours
Every 25 hours
OIL AND FUEL INFORMATION
Add fuel in a clean, level and well ventilated outdoor area. Wipe up any spilled fuel immediately.

STARTING/STOPPING INSTRUCTIONS

Operate this unit in a well-ventilated outdoor area.
Avoid accidental starting. Make sure you are in the

OPERATING INSTRUCTIONS

Do not remove or alter the line cutting blade assembly. Excessive line length will cause
MAINTENANCE AND REPAIR INSTRUCTIONS
To prevent serious injury, never perform maintenance or repairs with unit running. Always
MAINTENANCE REQUIRED
Fill fuel tank with fresh fuel
Clean and re-oil air filter
Check spark plug condition and gap
OFF (O)
ON (I)
Throttle
Control
Fig. 6
Choke Lever Primer Bulb
Fig. 7
Starting Position
Starter
Rope
Fig. 8
Fig. 9
Fig. 10
Fig. 11
SEE
p. 3
p. 4
p. 4
3