Throttle Slide Adjustment; Idle Speed Final Adjustment - BOMBARDIER Skandic 377 IR Shop Manual

SECTION 02 ENGINE
SUB-SECTION 09 (CARBURETOR AND FUEL PUMP)
7, Throttle slide adjustment
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WARNING: Ensure the engine is turned OFF,
prior to the throttle slide adjustment.
For maximum performance, correct carburetor throttle
slide adjustment is critical.
The following method should be used:
with engine turned off:
- Remove the air intake silencer.
- Back off the idle speed screw completely.
Turn the idle-speed screw clockwise until it contacts the
throttle slide then continue turning two (2) additional
turns. Repeat on the other carburetor . This will ensure
identical throttle slide idle setting.
Tighten carburetor cover with the throttle cable adjuster
jam nut unlocked, press the throttle lever against the han-
dle grip .
(All models except Blizzard 9700)
By turning the cable adjuster, adjust the carburetor slide
cut away so that it is flush with the top of the carburetor
bore .
(Blizzard 9700)
By turning the cable adjuster, adjust the carburetor slide,
so that it is flush with the top of the carburetor outlet bore.
Tighten the cable adjuster jam nut.
Repeat for the other carburetor (if applicable) .
_ CAUTION: On twin carburetor models, make sure
... both carburetors start to operate simultaneously.
PAGE 160
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WARNING: It is important that the throttle slide
adjustment be performed to ensure proper func -
tioning of throttle mechanism.
_ CAUTION: On twin carburetor model with rotary
... valve (Blizzard 9700) do not interchange carbure-
tors, the jetting is different on each side.
Once carburetor adjustment is performed, check that with
the throttle lever fully depressed, there is a free play of
1/16")
between the cover(s) and throttle slide. Readjust
accordingly.
Approx. gap
1.5
mm
(1/16")
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WARNING: This gap is very important. If the throt-
tle slide rests against the carburetor cover at full
throttle opening, this will create too much strain and
may damage the throttle cable.
Recheck carburetor synchronization.
_ CAUTION: On oil injection models, the oil injec-
... tion pump adjustment must be checked each time
carburetor is adjusted.
19, Idle speed final adjustment
Turn idle speed screw clockwise until it contacts the
throttle slide then continue turning two (2) additional
turns.
This will provide a preliminary idle speed setting. Start
engine and allow it to warm then adjust idle speed to
specifications by turning idle speed screw clockwise or
cou nter-clockwise.
(Refer to Section 09 "Technical Data" for the specifica-
tions).
_ CAUTION: Do not attempt to set the idle speed
... by using the air screw. Severe engine damage
can occur.