1991 dt90 sensors

[jr.001]

last trip to the lake oil sensor started acting up "again". replaced sensor ran engine at idle for about 15 min. engine ran normal no beeping from sensors. then i reved it to about 3000 rpms for just a second. the oil sensor started beeping again. shortly after the water sensor started to beep also. any help with this? also who has the best suzuki shop manual? thanks jr.

[boats.net]

You can order the manual at 99500-87E01-03E DT90 Service Manual