Ski-Doo Formula S 1998, Shop Manual

Page: 136 / 338

Section 04 ENGINE
Subsection 09 (CARBURETOR AND FUEL PUMP)
04-09-7
THROTTLE LEVER AGAINST HANDLE GRIP
1. Cover
2. Free play
3. Throttle slide
On twin-carburetor models: Recheck carburetor
synchronization.
PRELIMINARY IDLE SPEED
ADJUSTMENT
Adjust throttle slide height (see table) by turning
idle speed screw
no. 7 .
Final adjustment (engine running at idle speed)
should be within 1/2 turn of idle speed screw from
preliminary adjustment.
TYPICAL
1. Drill bit used as gauge for throttle slide height
IDLE SPEED FINAL ADJUSTMENT
7, Idle Speed Screw
Start engine and allow it to warm then adjust idle
speed to specifications by turning
idle speed
screw clockwise to increase engine speed or
counterclockwise to decrease it.
NOTE: On twin-carburetor models: Turn adjust-
ment screw the same amount to keep carbure-
tors synchronized.
Refer to TECHNICAL DATA 10 for the specifica-
tions.
;
WARNING
This gap is very important. If the throttle
slide rests against the carburetor cover at
full throttle opening, this will create too
much strain and may damage the throttle
cable or other components in throttle mech-
anism.
-
CAUTION
On oil injection models, the oil injection
pump adjustment must be checked each
time carburetor is adjusted. Refer to OIL IN-
JECTION SYSTEM 04-06.
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Models
Throttle Slide Height
mm (in)
Tundra II LT,
Skandic 380,
Touring E/LE,
Formula S/S Electric
1.3 (.051)
Skandic 500,
Formula SL,
Touring LE
1.5 (.059)
-
CAUTION
Do not attempt to set the idle speed by using
the air screw. Severe engine damage can oc-
cur.
A01C3NA
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