Section04ENGINE
Subsection 07 (CARBURETOR AND THROTTLE CABLE)
WARNING
Solvent with a low flash point such as gaso-
line, naphtha, benzol, etc., should not be used
as they are flammable and explosive.
Check throttle slide for wear. Replace as neces-
sary.
Check for fuel soaked into float no. 1; replace as
necessary.
Check float for cracks or other damages affecting
free movement; replace as necessary.
Inspect throttle and choke cables and housings for
any damage. Replace as necessary.
DISASSEMBLY AND ASSEMBLY
NOTE: To ease the carburetor disassembly and
assembly procedures, it is recommended to use
carburetor tool kit (P/N 404 112 000).
A00B2FA
Float Bowl
Unscrew drain screw no. 2 and screw no. 3.Re-
move float bowl no. 6.
Float and Needle Valve Ass’y
Unfasten both screws then, pull out float and nee-
dle valve ass’y.
At assembly, apply Loctite 243 on screw threads.
Main Jet
Themainjetno. 5 installed in the carburetor has
been selected for a temperature of - 20°C(0°F)
at sea level. Different jetting can be installed to
suit temperature and/or altitude changes. A ser-
vice bulletin will give information about calibration
according to altitude and temperature.
Main jet no. 5 may be removed without remov-
ing float bowl no. 6 by first removing drain screw
no. 2.
Pilot Jet
Use narrow screwdriver from carburetor tool kit
(P/N 404 112 000) to unfasten pilot jet no. 7.
Throttle Slide
WARNING
It is critical to the free operation of the throttle
slide that the 2 connecting plates as assem-
bled in one carburetor be of the exact same
length. Always replace the connecting plates
by a pair of new ones that were matched at
the factory for length and discard the old
ones. Simultaneously replace all the plates
of the carburetors of a same rack.
Do not disassemble throttle slide no. 17 need-
lessly.
CAUTION: After throttle slide reassembly, pro-
ceed with a leak test. See below for procedure.
Heated Carburetor Models
Disassemble both carburetors at the same time.
Coolant hose between carburetor throttle slide
covers must remain in place during the complete
disassembly and assembly.
All Models
Remove carburetor cover.
Loosen needle retainer screw no. 8.
Fully open throttle and hold in this position for the
following step.
Move aside needle retainer no. 9.
1
A32C6TA
1. Needle retainer moved aside
148 mmr2004-Rev
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