Ski-Doo Formula S 1998, Shop Manual

Page: 111 / 338

Section 04 ENGINE
Subsection 05 (CDI SYSTEM)
04-05-2
NOTE: The following procedures can be done
without removing the engine from chassis.
CLEANING
Clean all metal components in a non-ferrous met-
al cleaner.
DISASSEMBLY
To gain access to magneto assembly, remove the
following parts as needed on different engines:
– tuned pipe and muffler
– oil injection pump mounting plate from rewind
starter
– rewind starter
– starting pulley no. 10 and fan no. 11
To remove magneto flywheel retaining nut no. 13 ,
install puller ring (P/N 420 8760 80) and M8 x 20
screws.
– Remove magneto flywheel nut, using a 30 mm
socket machined to 40 mm (1.580 in) outside
diameter by 16 mm (5/8 in) long.
NOTE: To correctly remove a threadlocked fas-
tener it is first necessary to tap on the fastener to
break threadlocker bond. This will eliminate the
possibility of thread breakage.
TYPICAL
1. 30 mm socket
To remove magneto flywheel no. 9 , install the
magneto puller (P/N 529 0225 00).
TYPICAL
– Tighten puller bolt and at same time, tap on bolt
head using a hammer to release magneto fly-
wheel from its taper.
NOTE: Before disassembling armature plate, in-
dexing marks should be scribed to facilitate reas-
sembly.
REPAIR
To replace generator coil no. 2 :
– Heat the armature plate to 93°C (200°F) around
the screw holes to break the threadlocker
bond.
1. Heat
2. Protect harness from flame
-
CAUTION
Clean armature and magneto using only a
clean cloth.
A03C1JA
420 8760 80
1
-
CAUTION
Protect harness from flame.
A03C07A
529 0225 00 420 8760 80
A01C03A
1
2