1989 Ski-Doo Repair Manual, Page 62Get this manual
Section 02 Sub-section 02
(253 ENGINE TYPE)
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Spark plug protector Spark plug Ignition coil Ground wire (2) Taptite screw M5 20 (2) Amplifier box Washer mm (2) Lock washer mm (2) Screw M6 20 (2) Wiring grommet Wire ass'y Splice connector (6) Protector tube (6) Washer 5.5 mm (2) Lock washer mm (2) Loctite 242 Iblue, medium strength)
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Screw M5 18 (2) Generating coil Lock washer mm (2) Screw M5 35 (2) Lighting coH Scrow M6 25 (2) Magneto flywheel V-belt pulley Starting pulley Lock washer mm (3) Screw M8 12 (3) Lock washer 22 mm Nut M22 Armature plate Screw M5 mm Clamp
NOTE: The following procedures can be done without removing the engine from chassis
CLEANING
Clean all metal components in non-ferrous metal cleaner