Long Term Storage - Shindaiwa AHS242 Owner's/Operator's Manual

If you note excessive carbon buildup, consult with an authorized Shindaiwa servicing dealer.
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.
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.
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
Adjusting Engine Idle
The engine must return to idle speed
whenever the throttle lever is re-
leased. 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.

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 en-
gine will no longer start.
20
IMPORTANT!
IMPORTANT!
NOTE:
by an authorized Shindaiwa dealer.
Idle Speed Adjustment
1. Place the trimmer 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 adjust-
ment screw counter-clockwise.
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
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 con-
taminated fuel is not covered by the
Shindaiwa warranty policy.
Idle ad-
justment
screw
Adjusting
engine idle
■
Remove the spark plug and pour
about 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 thor-
oughly with soap and water. Let dry
and reassemble the element.
■
Store the unit in a clean, dust-free
area.