Ski-Doo FORMULA S 1997, Shop Manual

Page: 702 / 926

Section 03 ENGINE
Sub-Section 02 (599, 699 AND 809 ENGINE TYPES)
03-02-5
1. Pusher 21mm (.826 in)
RAVE System
NOTE: RAVE stands for Rotax Adjustable Variable
Exhaust.
Remove spring clip no. 3 , cover no. 4 and spring
no. 5 .
Remove spring no. 7 then unscrew valve piston
no. 6 .
Remove cylindrical screws no. 8 then valve rod
housing no. 9 .
Pull out exhaust valve no. 10 .
1. Exhaust valve
INSPECTION
NOTE: Refer to LEAK TEST AND ENGINE DI-
MENSIONS MEASUREMENT 03-03.
RAVE System
Check valve rod housing and cylinder for clogged
passages.
1. Draining hole
2. Passages
NOTE: Oil dripping from draining hole indicates a
loosen clamp or damaged bellows.
17, Bellows
Check for cracked, dried or perforated bellows.
5, Spring
ASSEMBLY
RAVE System
Install rave valve with its mention top as illustrat-
ed in the removal photo. Tighten red cap screw to
bottom.
11,12, Cylinder and Piston
NOTE:
Be sure to restore the chamfer around all
cylinder sleeve port openings.
Before inserting piston in cylinder, lubricate the
cylinder with new injection oil or equivalent.
A21C04A
1
A06C3NA
1
ENGINE
TYPE
SPRING
P/N
WIRE
DIA.
FREE
LENGTH
PRELOAD IN
N (LBF) AT
COMPRESSED
LENGTH OF
14.7 mm
(.579 in)
mm
(in)
mm
(in)
599
420
2399 40
0.8
(.031)
48.5
(1.91)
0.0100
(.00224)
699 and
809
420
2399 44
0.9
(.031)
48.5
(1.91)
0.0169
(.0038)
A06C3OA
1
2