Bombardier SeaDoo 1990 factory shop manual, Page 159Get this manual
Section 08 PROPULSIONDRIVE SYSTEMS Sub-section 02 (REVERSE SYSTEM)
ADJUSTMENTS
15, Reverse Handle
Pull reverse handle to NEUTRAL and ensure handle is locked inn
With the gate down to NEUTRAL position it should be at the sp&cificationIf reverse gate needs to be readjusted, it can be done at support plate with adjustment nutsTurn cable nuts to obtain position
24, Reverse Galte
Position handlebarin straight ahead position, nozzle should be parallel to rear of watercraft