Shindaiwa AH254, Owner'S/Operator'S Manual

Page: 20 / 32

20
Long Term Storage
Whenever the unit will not be used for
30 days or longer, use the following
procedures to prepare it for storage:
■
Clean external parts thoroughly and
apply a light coating of oil to all metal
surfaces.
■
Drain all the fuel from the carburetor
and the fuel tank.
To do so:
1. Prime the primer bulb until no more
fuel is passing through.
2. Start and run the engine until it stops
running.
3. Repeat steps 1 and 2 until the engine
will no longer start.
■
Remove the spark plug and pour
about 7 cc (1/4 oz.) of engine oil into
the cylinder through the spark plug
hole. Slowly pull the recoil starter 2
or 3 times so oil will evenly coat the
interior of the engine. Reinstall the
spark plug.
■
Before storing the unit, repair or
replace any worn or damaged parts.
■
Remove the air cleaner element
from the carburetor and clean it
thoroughly with soap and water. Let
dry and reassemble the element.
■
Store the unit in a clean, dust-free
area.
CAUTION!
Gasoline stored in the carburetor
for extended periods can cause
hard starting, and could also lead to
increased service and maintenance
costs.
IMPORTANT!
All stored fuels should be stabilized
with a fuel stabilizer such as
STA-BIL™.
NOTE:
Damage resulting from stale or
contaminated fuel is not covered by the
Shindaiwa warranty policy.
Carburetor Adjustment
Engine Break-In
New engines must be operated a minimum duration of two tanks of fuel break-in before carburetor adjustments can be
made. During the break-in period your engine performance will increase and exhaust emissions will stabilize. Idle speed can
be adjusted as required.
High Altitude Operation
This engine has been factory adjusted to maintain satisfactory starting, emission, and durability performance up to
1,100 feet above sea level (ASL) (96.0 kPa). To maintain proper engine operation and emission compliance above
1,100 feet ASL the carburetor may need to be adjusted by an authorized Shindaiwa service dealer.
IMPORTANT!
If the engine is adjusted for operation above 1,100 feet ASL, the carburetor must be re-adjusted when operating the
engine below 1,100 feet ASL, otherwise severe engine damage may result.
Adjusting Engine Idle
The engine must return to idle speed
whenever the throttle trigger is
released. Idle speed is adjustable, and
must be set low enough to permit the
engine clutch to disengage the cutting
attachment.
WARNING!
The cutting attachment
must NEVER move at engine idle! If
the idle speed cannot be adjusted by
the procedure described here, return
the unit to your Shindaiwa dealer for
inspection.
Idle Speed Adjustment
1. Place the unit on the ground, then
start the engine, and then allow it to
idle 2 - 3 minutes until warm.
2. If the attachment moves when
the engine is at idle, reduce
the idle speed by turning
the idle adjustment screw
counterclockwise.
3. If a tachometer is available, adjust
idle. Check Specifications page for
correct idle speed
NOTE:
Carburetor fuel mixture adjustments
are preset at factory and cannot be
serviced in the field.
NOTE:
Every unit is run at the factory and the carburetor is set in compliance with emission regulations. Carburetor adjustments,
other than idle speed, must be performed by an authorized Shindaiwa dealer.
Idle Adjustment
Screw