Ski-Doo Formula S 1998, Shop Manual

Page: 133 / 338

Section 04 ENGINE
Subsection 09 (CARBURETOR AND FUEL PUMP)
04-09-4
1. Ruler vertical and in line with main jet
To Adjust Height H:
– Bend the contact tab of float arm until the spec-
ified height is reached.
1. Contact tab
The following illustration shows the part of the
carburetor which begins and stops to function at
different throttle slide openings.
Note that the wider part of symbol corresponds to
the opening mostly affected. For instance, throt-
tle slide cutaway begins to function at closed po-
sition but it is most effective at 1/4 opening and
decreases up to 1/2 opening.
VIEW FROM AIR INTAKE OPENING
NOTE: For fine tuning refer to TECHNICAL DATA
10 and to SPARK PLUG 06-03.
NOTE: For high altitude regions, the High Altitude
Technical Data Booklet (P/N 484 0686 00 and 484
0545 00 for binder) gives information about cali-
bration according to altitude and temperature.
INSTALLATION
To install carburetor on engine, inverse removal
procedure.
However, pay attention to the following:
– Inspect throttle cable and housing prior to in-
stallation.
On applicable models, make sure to align tab of
carburetor and air intake silencer (if applicable)
with notch of adaptor(s). On applicable models, in-
stall adaptor with UP mark facing up.
Install clamps in a way that their tightening bolts
are staggered — not aligned.
Hook throttle cable into the needle retainer plate.
CARBURETOR
MODEL
FLOAT HEIGHT H
±
1 mm (
±
.040 in)
VM 30
VM 34
23.9 (.941)
A01C5BA
1
A00C03A
1
-
CAUTION
Never allow throttle slide(s) to snap shut.
-
CAUTION
The rubber flange must be checked for
cracks and/or damage. At assembly, the
flange must be perfectly matched with the
air intake manifold or severe engine damage
will occur.
Throttle slide openings
Pilot jet and air screw 13,6,
Throttle slide cut-away 5,
Needle taper and needle position 3,
Needle jet 14,
Main jet 8,
A00C04A
Wide
open
Close
3/4
1/2
1/4
1/8