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View Full Version : 1990 250 HP yamaha 76 degree engine oil tank level falling



jon
10-15-2003, 05:57 PM
" On my friends 1990 250 HP yamaha, 76 degree V6, the engine oil tank level periodically falls below about 1/2 and then the low oil buzzer comes on, limiting RPM to 2000. Sometimes it refills and sometimes it won't (we fill it up manually in this case).

Using the clymer repair manual he's got on it, I can't determine what keeps the tank full. Is it the remote oil pump or the oil injection pump, and what should we do to trouble-shoot etc..?

Thanks for any/all help on it,

Jon "