Carburetor Adjustment; High Altitude Operation - Shindaiwa C242 Owner's/Operator's Manual

Maintenance (continued)
Muffler maintenance
Engine Cover
Screws
Ever y 135 hours of operation,
remove and clean the muffler.
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.
If the engine becomes sluggish and low
on power, check and clean the spark
arrester screen.

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.
Muffler
Cover
Screw
1. Remove the spark plug boot.
2. With a 4mm hex wrench remove
the 1 muffler cover and 3 engine
cover screws and the engine cover.
The muffler cover is attached to the
engine cover at the top and front
by tabs. To remove push inward at
arrow area while pulling outward.
See insert image.
3. With a Phillips type screwdriver
remove the 5 screws holding the
spark arrester screen and cover to
the muffler.
4. Remove the screen and clean it with
a stiff bristle brush.
Engine Cover
Muffler
Gasket
Spark Arrester
Spark Arrester
Screen
Muffler Gasket
5. Remove the 3 muffler bolts and the
muffler.
6. Inspect the cylinder exhaust port for
any carbon buildup.
7. Gently tap the muffler on a wood
surface to dislodge any loose carbon.
8. Reassemble the spark arrester, muf-
fler and engine cover in the reverse
order of disassembly.
If you note excessive carbon buildup, con-
sult with an authorized Shindaiwa servicing
dealer.
Muffler Cover
Muffler
Screws
Screws
Outlet
Cover
IMPORTANT!
19