Shindaiwa LE254 User Manual

16

With a 3 mm hex wrench remove 

1. 

the 4 engine cover screws and the 

engine cover.
With a 4 mm hex wrench, remove 

2. 

the 3 muffler bolts and the muffler.
With a small flat bladed screwdriver 

3. 

remove the 2 screws holding the 

spark arrester screen and cover to 

the muffler.
Remove the screen and clean it 

4. 

with a stiff bristle brush.
Inspect the cylinder exhaust port for 

5. 

any carbon buildup.
Reassemble the spark arrester, 

6. 

muffler and engine cover in the 

reverse order of disassembly.

If the engine becomes sluggish and 

low on power, check and clean the 

spark arrester screen.

If you note excessive carbon buildup, 

consult with an authorized Shindaiwa 

servicing dealer.

WARNING!
Never operate the unit with a 

damaged or missing muffler or spark 

arrester! Operating with a missing 

or damaged spark arrester is a fire 

hazard and could also damage your 

hearing.

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.

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.

Every unit is run at the factory and the carburetor is set in 

compliance with emission regulations. Carburetor adjust-

ments, other than idle speed, must be performed by an 

authorized Shindaiwa dealer.

If the engine is adjusted for operation above 1,100 feet 

ASL, the carburetor must be re-adjusted when operat-

ing the engine below 1,100 feet ASL, otherwise severe

 

engine damage may result.