BOMBARDIER ski-doo Tundra Scandic 2004 Series, Shop Manual

Page: 214 / 427

Section 04 ENGINE
Subsection 11 (CARBURETOR AND FUEL PUMP)
04-11-10
MMR2004-120_04_11A.FM
CAUTION: On dual carburetor models, make
sure both carburetors start to operate simulta-
neously. Do not interchange carburetors as the
jetting may be different on each side. A red dot
is printed on one carburetor and on the engine.
Match the carburetor and the engine dots when
applicable.
CAUTION: T he oil injection pump adjustment
must be checked each time carburetor is adjust-
ed. Refer to OIL INJECTION SYSTEM.
IDLE SPEED FINAL ADJUSTMENT
7, Idle Speed Screw
CAUTION: Before starting engine for the final
idle adjustment, make sure that oil pump is ad-
justed. The oil injection pump adjustment must
be checked each time carburetor is adjusted.
Refer to OIL INJECTION SYSTEM.
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 carburetors
synchronized.
Refer to TECHNICAL DATA for the specifications.
CAUTION: Do not attempt to set the idle speed
by using the air screw. Severe engine damage
can occur.
CHOKE
Skandic LT/WT/SWT/WT LC
Choke Plunger Adjustment
Set choke lever to fully open position.
CHOKE LEVER — FULLY OPEN POSITION
Skandic LT/WT/SWT
Use small diameter (for VM 30, VM 32 and VM 34
carburetors) of choke plunger tool (P/N 529 032 100).
Skandic WT LC/SUV 600
Use big diameter (for VM 38) of choke plunger tool
(P/N 529 032 100).
All Models
Insert proper diameter of choke plunger tool into
choke air inlet of each carburetor. Tool stopper may
not lean against recess wall. Though it must be
within 1 mm (.040 in) of recess wall.
AIR SILENCER SIDE SHOWN
1. Tool stopper within 1 mm (.040 in) of recess wall
A01C5HA
1
A01C5EA