Echo CS-2511TES - 8-4 Testing crankcase and cylinder sealings

ENGINE
CS-2511TES
251Ts, 251TCs
60
A
8-4Testingcrankcaseandcylindersealings
1. Remove air cleaner cover, air lter and carbure-
tor from the unit (Refer to “4-9 Testing carburetor” ).
2. There are two ways to seal intake port and
crankcase pulse passage. Choose convenient one
from followings.
Way1 : Install pressure plate 897827-16131 (A)
and tighten M5 bolts (B) of 8-10 mm (0.3-0.4 in)
length.
Way2 : Install pressure rubber plug 897826-16131
(C) and carburetor (D) and tighten original bolts (E)
for carburetor.
3. To seal exhaust port of cylinder, cut pressure
rubber plug 91041 (F) off as shown.
4. Remove exhaust plate and mufer (G) with ex-
haust gasket (H) (Refer to “8-3 Inspecting mufer
and exhaust port” ).
5. Set pressure rubber plug (F) to mufer (G) with
exhaust gasket (H) as shown.
NOTE : Make sure to cover exhaust port (g) of
mufer with pressure rubber plug (F).
6. Gently tighten mufer bolts (J1 and J2) until the
muffler (G) and pressure rubber plug (F) fit with
cylinder. Then turn mufer bolts (J1) 180 degrees
clockwise.
NOTE : Do not install exhaust plate. Do not tighten
mufer (G) and pressure rubber plug (F) fully, or
mufer (G) may be deformed.
44mm
17mm
B
C
E
D
F
F
G
H
J1
g
J2