Bombardier SeaDoo 2001 factory shop manual, Page 51Get this manual
Section 02 MAINTENANCE Subsection 05 (STORAGE)
Hose Pinchers Installation
Some hoses have to be plugged to prevent draining, before filling cooling system jackets with the antifreezeAll Models except DI
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RFI MODELS 787 ENGINE 1Hose pincher installed on engine drain hose
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NOTE: On RFI models, make sure the hose is properly connected to the magneto cover