Mercury 115 outboard stranger noise at startup and switch of

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,142
Gee, is that an Optimax? They have an electric fuel pump, although they do not make that noise. Are you turning the key to start when you hear that studder?
 

jasponiek

Recruit
Joined
Feb 12, 2017
Messages
3
No its not Optimax,its 2006 115 EFI 4st.
Noise is coming when I turn ignition on (not starter) and
after'm turning off the ignition.
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,616
Thats a EFI 4 stroke and that's the electric fuel pump you hear.....nosier than normal
 
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