Bombardier SeaDoo 1998 factory shop manual, Page 148Get this manual
Subsection 08
Section 04 ENGINE (EXHAUST SYSTEM)
Push cone no5 until it touches tuned pipe, then tighten exhaust clamp no4 and torque to 10 Nm (88 lbfin)
Torque bolt of tuned pipe head above the engine magneto to 25 Nm (18 lbfft)-
CAUTION
There must be no gap between tuned pipe cone and tuned pipe headNOTE: Exhaust clamp nuts should be tightened alternately to assure no leakage and to obtain specified torque
947 Engine