Suzuki GP125 - Page 65

CARBURETION
Adequate
carburetion
is
determined
according
to
the
results
of
various
tests,
mainly
concerning
engine
power,
fuel
consumption
and
cooling
effect
of
fuel
on
engine,
and
jet
settings
are
made
so
as
to
satisfy
and
balance
all
of
these
conditions.
Therefore,
the
jet
should
not
be
replaced
with
a
size
other
than
the
original,
and
the
positions
of
adjustable
parts
should
not
be
changed
except
when
compensating
for
the
mixture
ratio
due
to
altitude
differences
or
other
climatic
conditions.
When
adjustment
is
necessary,
refer
to
the
following.
Fuel-air
mixture
ratio
can
be
changed
as
follows:
Throttle
Opening
Method
of
Changing
Ratio
Standard
setting
Air
adjusting
screw
richer 1-1/2 turns back
1.3/4 turns back
(Only for 1.0. Мо. 39122)
Slight
Jet needle
Leaner
AEJI4 — 3rd Groove
(1.0. №. 39111 and 39130)
richer 4125 - 3rd Groove
(I.D. No. 39122)
4Р6 — 3rd Groove
(I.D. No. 39150)
Medium
Main jet
90 (1.0. №. 39111)
05 (1.0. №. 39122)
292.5 (1.0. No. 39130)
7.5 (1.0. No. 39150)
Larger number
icher mixture
Smaller number
leaner mixture