225 fouling plugs

cvstucco

Cadet
Joined
May 18, 2008
Messages
6
I have a 2002 mercury 225 saltwater that has 25 hours on it, It keeps fouling plugs. It is currently at the shop. We have talked to merc.tech about ten times and have done everything that they have suggested. fuel pressure ok, thermastat ok, no trash blocking exaust,put in champion plugs they fouled put in nkg plugs they foul. all injectors checked out ok., fuel rail ok, put on new ecu with still the same problem, fouling plugs everytime. has anyone out there ever encountered a simular situation. All bulletins have been adressed and still the same problem

Thanks
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,878
Re: 225 fouling plugs

Block off fuel system and pressurize the fuel rail to 45 psi. If pressure holds injectors good, if not injector/s have debris in them and need cleaned. Email or call Tony Brucatto to have serviced.
 

cvstucco

Cadet
Joined
May 18, 2008
Messages
6
Re: 225 fouling plugs

Thanks, I have done that too. Mercury techs don't seem to be able to figure it out either. It is over fueling, that is a certain.
 
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