1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 151Get this manual
ENGINECOOLING Cylinder and Manifold 700 Marine Engine
Note alignment of head prior to disassembly and reassemble the same way it was removed O-Rings 35-40 ftIbs (4,84-5.53 kg-m)