9-2-4
MAIN
SYSTEM
1)
Remove main jet holder
(9)
and dismount
2)
Remove main
jet
(8)
from main jet holder
'3)
Remove main nozzle
(2)
from carburetor
4)
Reassembly
float chamber-bowl
(6).
(9).
body.
a.
Tighten main jet securely to main jet
holder.
If
not tightened securely an
engine disorder may result through a
too rich
fuel
mixture.
b.
Tighten main jet holder to
90
kg-cm
(6.5
ft.
lbs)
torque.
9-2-5
FLOAT SYSTEM
1)
Extract float
pin
(5)
and remove float
(4)
2)
Reassembly
and needle valve
(14).
Whenever needle valve
is
replaced, re-
place valve seat as well, installing a
matching needle valve and seat assembly.
CAUTION: NEVER USE A DRILL OR A
METAL WIRE
TO
CLEAN JETS. THEY
ARE LIABLE
TO
DAMAGE
THE ORIFICE
AND CAUSE AN ENGINE MALFUNC-
TION. BLOW AIR
TO
CLEAN THEM.
23
17
rn
18
12
11
7
10
13
Fig.
9-2-A
(EY74, EY18-31
7
8
9
Fig.
9-2-C
(E Y25-2,
EY27-21
Fig.
9-2-6
(E
Y23/
-35
-
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