Bolens 3BA サービスマニュアル

NOTE: Fuel stabilizer (such as STA-BIL) is an accept-

able alternative in minimizing the formation of fuel gum 

deposits during storage. Add stabilizer to gasoline in fuel 

tank or storage container. Always follow mix ratio found 

on stabilizer container. Run engine at least 10 minutes 

after adding stabilizer to allow it to reach the carburetor. 
Do not drain carburetor if using fuel stabilizer.
4.  Remove the spark plug and pour one (1) ounce 

of engine oil through the spark plug hole into the 
cylinder. Cover spark plug hole with a rag and crank 
the engine several times to distribute the oil. Replace 
spark plug.

NOTE: Refer to the engine manual for more information 
on preparing the snow thrower engine for storage.

1.  When storing the snow thrower in an unventilated or 

metal storage shed, care should be taken to rustproof 
the equipment. Using a light oil or silicone, coat the 
equipment, especially any chains, springs, bearings 
and cables.

2.  Remove all dirt from exterior of engine and equipment.
3.  Follow lubrication recommendations on page 12.
4.  Store equipment in a clean, dry area.

If the snow thrower will not be used for 30 days or 
longer, or if it is the end of the snow season when the 
last possibility of snow is gone, the equipment needs to 
be stored properly. Follow storage instructions below to 
ensure top performance from the snow thrower for many 
more years.

NOTE: Refer to the engine manual for more detailed 
information on preparing the snow thrower engine for 
storage.

NOTE: It is important to prevent gum deposits from 
forming in essential fuel system parts of the engine such 
as the carburetor, fuel filter, fuel hose or tank during 
storage.
CAUTION: Alcohol blended fuels (called gasohol 
or using ethanol or methanol) can attract moisture 
which leads to separation and formation of acids 
during storage. Acidic gas can damage the fuel 
system of an engine while in storage.
To avoid engine problems, the fuel system should be 
emptied before storage for 30 days or longer. Follow 
these instructions to prepare your snow thrower for 
storage:

1.  Remove all gasoline from the carburetor and the fuel 

tank to prevent gum deposits from forming on these 
parts and harming the engine.

2.  Run the engine until the fuel tank is empty and it 

stops due to lack of fuel.

3.  Drain carburetor by pressing upward on bowl drain, 

located below the carburetor cover.  See Figure 14.

Carburetor

Bowl Drain