1985 Yam ETK 90hp

MJ Albanese

Recruit
Joined
Apr 23, 2023
Messages
3
Hello: I replaced oil pump on 1985 Yam ETK 90.
Oil pump cam(?) shaft busted/chipped end and oil was spewing out at linkage end of assembly.
There is a brass screw looks like carb drain screw on upper side of pump.
Is this a port for to remove air or a priming access, and or do I need to prime pump?
Thanx
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
37,846
A failed oil pump could lead to expensive issues.----Do a compression test and post the numbers.
 
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