1997 Ski-Doo Factory Shop Manual Volume One, Page 118Get this manual
Sub-Section 09
Section 03 ENGINE (CARBURETOR AND FUEL PUMP)
Fuel pump components should be cleaned in general purpose solvent and dried with compressed airWARNINGSolvent with low flash point such as gasoline, naphtha, benzol, etc should not be used as each is flammable and explosiveInspect diaphragmThe pumping area should be free of holes, tears or imperfectionsReplace as neededHigh-supply pump with twin outletsThoroughly clean filter on top coverReplace filter if necessary;