Bombardier SeaDoo 1990 factory shop manual, Page 100Get this manual
Sectim 07 ELECTRICAL Sub-Section 03 (ELECTRIC STAIRT,
Calses troubles are necessarily related to starter of but may be due faulty battery swtches,electrcal cables connectans.Consult the followng tmubkshootng table
WARNINGShort circuiting ekctric starter is always danger6therefore disconnect the battery glround cable before carrying out any kind of mamtenance on starting systemDo not place tools on battery+