Bombardier SeaDoo 1992 factory shop manual, Page 72Get this manual
Section 03 ENGINE Sub-section 05END)
- With the other hand, slowly rotate engine by PTO flywheelLay forearm over screwdrivers to feel movement
TDC gauge
Degree wheel
Screwdrivers in spark plug holes
Hand tighten nut
Needle pointer
- Remove TDC gauge and install on PTO
- Bring PTO piston at Top Dead Center
As soon as one piston starts going up, the other must mmediately go downAny interval between strokes indicates misaligned crankshaft Or, to accurately check crankshaft alignment, proceed as follows- Remove ignition housing cover
Interval between cylinders must be exactly 180' therefore, needle pointer must indicate 18Q0on degree wheel (360'- 180'180')Any other reading indicates misaligned crankshaft