Motobecane 40 - Page 29

\-,
REMOVING, DECARBONIZING,
REFITTING
THE
EXHAUST
CONT'D,
REM0VING THE EXHAUST
PIPE
(Oval
type with
crossed chambers,
Fig.
5)
Remove the two bolts
on the exhaust
clamp
using a
10nrn
socketo
Loosen the
nut
connecting
the exhaust to the
cyl
inder
(32nm
wrench) and
remove the exhaust
completely.
DECARBONIZING:
Loosen the
nut on
the
clamp securinq the muffler
to
the
pipe
(10mm
wrench).
Remove
the muffler.
Insert
a triangularr scraper through
the
hole
and
scrape aIl carbon
deposits
from
around the
edges as
shown in figure 6.
I nsert
a
steel
cabl e
(di
am.
7mm l ength :
250nrm) i nto
the
tai I
pi
pe
and
clean it out.
-
LastJy, shake the exhaust
vertically to
remove deposits
from the entry
hol
e
REFITTING:
Reverse
the
procedure
and
fit
a
new sealing washer
in
the
exhaust
port
of
the cyl
inder.
.Insert
a
steel
cable
(diam.
7mm)
into the tail
pipe.
deposits
with
Scrape al
I
carbon
a
scraper.
Fis.
6
Fis.
5
R0 25
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