Bombardier SeaDoo 2000 factory shop manual volume 2, Page 88Get this manual
Section 04 ENGINE Subsection 05 (TOP END)
RAVE Valve
Carburetor-Equipped Engines Install the supporting ring no28 with the bevel side facing the O-ring no27Piston
At assembly, place the pistons no3 with the letters "AUS" (over an arrow on the piston dome) facing in direction of the exhaust portAUS
A01C01A
1Exhaust side
F06D11A
1Bevel facing the O-ring