The engine manufacturer (ROTAX) has issued Service Bulletin SB-912-076UL ordering the replacement of the fuel pump nipple fittings. The reason for the replacement is the fact that a certain number of fuel pump nipple fittings were installed using a lubricant instead of the prescribed thread sealant LOCTITE 577 Yellow. This bulletin replaces the cancelled bulletin EV 97-039a SPORTSTAR-040a Harmony LSA-017. This bulletin corrects a numbering error.