Sabre 4SISON BLB4QL-M, Operator'S Manual

EN - 18

4.   Inspect the spark plug. If the spark plug is cracked, 

fouled or dirty, replace it with an identical one.

5.   If it can be kept using, set the air gap at 0.6 mm - 0.8 

mm(0.025 - 0.31 in.)(Fig.15).

6.   Reinstall the spark plug in the cylinder head. Tighten the 

spark plug properly, Do not over tighten.

7.   Reattach the spark plug cap and close the spark plug 

cover.

CLEANING

To avoid serious personal injury, always stop the engine and 

allow it to cool before cleaning or maintaining the unit.

Use a small brush or a soft cloth to clean the outside of the 

unit. Wipe any remaining moisture from the product.

Do not use strong detergents. Household cleaners that 

contain aromatic oils such as pine and lemon, and solvents 

such as kerosene, can damage plastic. 

STORAGE

1.   Allow the engine to cool before storing.

2.   Inspect the unit for any loose or damaged parts. Repair 

or replace damaged parts and tighten loose screws, 

nuts or bolts. Replace only with identical parts for 

anything damaged, broken, or worn.

3.   Drain up fuel before long-term storage: Remove the fuel 

tank cap, tip the unit and drain the fuel into an approved 

container. Reinstall the fuel tank cap. Start the engine 

and allow it to run until it stalls. This ensures that all fuel 

has been drained from the carburetor. Allow the engine 

to cool. 

4.   Thoroughly clean the unit especially the air filter.

5.   Store the unit in a dry, well-ventilated place away from 

smoke, open flames, or sparks. Store the unit out of  

reach of children and lock up it to prevent unauthorized 

use or damage.

6.   Drain up oil after long-term storage. Change the oil 

before use.

NOTE:

At the beginning of the next season, use only fresh fuel. Do 

not use fuel that has been stored for more than 30 days.

Dispose of old fuel and oil according to federal, state and 

local regulations. 

TROUBLESHOOTING

Suspected malfunctions are often due to causes that the 

users can fix themselves. Therefore, check the product 

using this section. In most cases the problem can be solved 

quickly.

PROBLEM

POSSIBLE 

CAUSE

SOLUTION

The engine will 

not start

The fuel tank 

is empty

Fill the fuel tank 

with fresh fuel

The primer 

bulb was 

not pressed 

enough

Press the primer 

bulb 10 times

The fuel is 

old (over 30 

days)

Drain the fuel tank 

and add fresh fuel

The spark 

plug is fouled

Replace the spark 

plug

The engine will 

not idle

The air filter 

is dirty

Clean or replace 

the air filter

The fuel is 

old (over 30 

days)

Drain the fuel tank 

and add fresh fuel

The engine will 

not accelerate

The fuel is 

old (over 30 

days)

Drain the fuel tank 

and add fresh fuel

The air filter 

is dirty

Clean or replace 

the air filter

The engine 

lacks power or 

stalls

The fuel is 

old (over 30 

days)

Drain the fuel tank 

and add fresh fuel

The air filter 

is dirty

Clean or replace 

the air filter

The spark 

plug is fouled

Replace the spark 

plug

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