bf 90 buzzer on start up

[aurora]

BF 90 buzzer comes on at start up and green oil light does not come on.After about 30 seconds green light comes on and then buzzer goes off.This happens every morning when engine is cold only.Engine runs fine all day with no problems.Any ideas would be appricate.

 

[justintime]

sounds like you need to change the oil ASAP and the filter

 

[aurora]

Oil and filter is changed

 

[chawk_man]

Track down the wires to the oil pressure sender, inspect closely and clean thoroughly. Remove sender. Clean thoroughly. If that doesn't help, replace the sender.

 

[aurora]

Thanks for you help.
Will do that and let you know.