Emission Control Carburetor Components - Suzuki Katana 1100 Service Manual

5-1 EMISSION CONTROL INFORMATION
EMISSION CONTROL CARBURETOR COMPONENTS
GSX 11 OOF motorcycles are equipped with precision, manufactured carburetors for emission level control.
These carburetors require special mixture control components and other precision adjustments to function
properly.
There are several carburetor mixture control components in each carburetor assembly. Three (3) of these
components are machined to much closer tolerances than standard machined carburetor jets. These three
(3) particular jets - MAIN JET, NEEDLE JET, PILOT JET - must not be replaced by standard jets. To aid
in identifying these three (3) jets a different design of letter and number are used. If replacement of these
close tolerance jets becomes necessary, be sure to replace them with the same type close tolerance jets
marked as in the examples shown below.
The jet needle is also of special manufacture. Only one clip position is provided on the jet needle. If
replacement becomes necessary the jet needle may only be replaced with an equivalent performing
replacement component. Suzuki recommends that Genuine Suzuki Parts be utilized whenever possible
for the best possible performance and durability.
Conventional Figures Used
I.
on Standard Tolerance Jet I
1234567890
Components
1--
- - - - - i l - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - i
Emission Type Figures Used
I
On Close Tolerance Jet
I
I 2
5 5
'7
a
o
Components
The carburetor specification for the emission-controlled GSX 11 OOF are as follows.
Carburetor
Main Needle
I
Jet Pilot Pilot
-~~~~B~~~-----~0.1 ~e~O.4
:
r
Jet
!
Jet
J
_tNeedle s_c_re_w
I
I
P-2
5DL11
#
32.5
I
[i
PRE-SET
(Other state models)
#
//2.5
~
I
##
y
' -f2C'.5'-~1
r
I
DO NOT ADJUST
48B-;'---l
I
No.2 & l\Jo.3:
I
--if------­
P 0
5DL 16
I
(California model).
#
1 1 0 : - .
The pilot screw is pre-set by the factory utilizing specialized testing and adjusting procedures. The pilot
screw is not adjustable as the idle circuit is "sealed" after factory adjustment. Adjusting, interferring with,
improper replacement, or resetting of any of the carburetor components may adversely affect carburetor
performance and cause the motorcycle to exceed the exhaust emission level limits. If persons, who are
unaware of these special carburetor servicing requirements tamper with the carburetors the Suzuki dealer
should restore the carburetors to their original condition or if unable to effect repairs, contact the
distributors representative for further technical information and assistance.