1989 Ski-Doo Repair Manual, Page 241Get this manual
Section 02 Sub-section 11
(AIR INTAKE SILENCERFUEL TANK)
43, Phillips head screw
Torque fuel level sensor retaining screws to N.m (8 Ibfin) in the sequence shown and then to 2.5 N.m (22 Ibf.in), using the same sequence