1999 Ski-Doo Factory Shop Manual Volume One, Page 143Get this manual
Section 04 ENGINE Subsection 06 (OIL INJECTION SYSTEM)
To remove gear retaining nut no1, first extract the needle roller no4 with pliers then lock gear no2 in place using the following gear holder:
ENGINE TYPE 377443503 TOOL PN 420 876 695
Retighten the adjuster nut
A10C01A
420 876 695
ASSEMBLY