1989 Ski-Doo Repair Manual, Page 355Get this manual
Section 03 TRANSMISSION Sub-section 09 (DRIVE CHAIN)
DRIVE CHAIN
GENERAL
Bombardier drive chains exist in four types, for proper use refer to Technical Data section 08(TYPICAL)
Rotation 12 in SINGLE
ACOO 003 027
38 in DOUBLE
38 in TRIPLI::