Ski-Doo Formula 500 1998, Shop Manual

Page: 161 / 398

Section 04 ENGINE
Subsection 11 (CARBURETOR AND FUEL PUMP)
04-11-8
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.
CHOKE
MX Z 440 and Skandic WT/SWT/WT LC
Choke Plunger Adjustment
Set choke lever to fully open position.
CHOKE LEVER — FULLY OPEN POSITION
Use small diameter of tool for VM 34 carburetors.
Insert 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.
Models
Throttle Slide Height
mm (in)
MX Z 440 1.5 (.059)
MX Z 500 1.8 (.071)
MX Z 583 2.0 (.078)
MX Z 670 2.1 (.083)
Formula 500/500 DL 1.8 (.071)
Formula 583 DL/Z 583 2.0 (.078)
Formula Z 670 2.1 (.083)
Summit 500 2.2 (.087)
Summit 583 2.3 (.091)
Summit 670 2.3 (.091)
Grand Touring 500 1.8 (.071)
Grand Touring 583 2.0 (.078)
Skandic WT 1.5 (.059)
Skandic SWT 1.3 (.051)
Skandic WT LC 1.5 (.059)
A01C3NA
1
-
CAUTION
Do not attempt to set the idle speed by using
the air screw. Severe engine damage can oc-
cur.
A01C5HA