ENGINE
PB-2520
EB252
45
7-3 Inspecting muffl er and exhaust port
1. Remove muf
À
er.
2. Inspect cylinder exhaust port (A) and clean the
port (A) using wooden or plastic stick if carbon is
found.
NOTE:
When cleaning exhaust port, always posi-
tion piston at Top Dead Center (TDC) to prevent
carbon from entering cylinder. Do not use metal
tool, and be careful not to scratch piston or cylin-
der.
NOTE:
Replace muf
À
er gasket with new one when
removing muf
À
er.
3. Remove bolt (B) and spark arrestor screen (C)
from muf
À
er.
4. Remove carbon deposits from spark arrestor
screen (C). If screen has heavy deposits, replace
with new one.
5. Reassemble spark arrestor screen (C) and tight-
en bolt (B).
6. Reinstall muf
À
er with new muf
À
er gasket.
A
C
B