Echo CS-600 Service Manual page 32

30
4-6 Adjusting carburettor (continued)
4-6 Adjusting carburettor (continued)
FUEL SYSTEM
2. Screw limiter cap removal tool P/N 91019 anti-
clockwise into centre hole of either limiter cap until
tab of the limiter cap just comes out of the locating
slot (Fig.1, Fig.2).
NOTE: DO NOT REMOVE LIMITER CAP COM-
PLETELY FROM CARBURETTOR!
If the first limiter cap is removed completely, the
second limiter cap can be misaligned while insert-
ing the cap removal tool.
Fig.1
3. Remove the limiter cap removal tool from the
limiter cap by turning the tool clockwise, leaving
the limiter cap in place (Fig.2).
4. Screw limiter cap removal tool P/N 91019 anti-
clockwise into centre hole of remaining limiter cap
until the limiter cap is removed from the mixture
needle completely (Fig.3). Remove the limiter cap
from limiter cap removal tool by turning clockwise,
Fig.2 then screw limiter cap removal tool into centre hole
of previous limiter cap to remove completely.
5. With 2.5 mm blade screwdriver, turn L and H
mixture needles clockwise until lightly seated
(Fig.4), then turn out both mixture needles follow-
ing turns.
L mixture needle : 2, H mixture needle : 3/4
NOTE: If needles are forced during seating, dam-
age to carburettor may occur.
Fig.3
6. Remove air cleaner lid and air fi lter to expose
Throttle adjust screw and throttle plate. Turn Throt-
tle adjust screw anti clockwise and set the screw
until the tip just contacts the throttle plate. Then
turn Throttle adjust screw 2 3/8 turns clockwise.
Reinstall air fi lter, and cleaner lid.
NOTE: The initial carburettor settings for Throttle
adjust screw, L and H mixture needles are intend-
ed to start and run engine before fi nal carburettor
adjustments are made through this procedure. The
actual number of turns needed for engine opera-
tion may vary.
Fig.4
CS-600