My first 4 stroke and problems with fuel

boatman192

Cadet
Joined
Aug 18, 2006
Messages
21
Just brought a 2006 mer 4 stroke bigfoot with efi-------wont run at 2000 rpms at all---------Fuel looks great with no water----i tried testing the top of the vapor sepator plug wires with a test lite---cant get any power there--fueses all good---un plug there and cut switch on and plug it back in--cant here the pump running at all---should i get 12 volts at the plug with my test lite??? if so where should i look for the no power??? Also what is the plug in the front near the flywheel thats says teramotor on it for??? thanks
 

Timestep

Petty Officer 1st Class
Joined
Jul 17, 2002
Messages
204
Re: My first 4 stroke and problems with fuel

It could be in limp-home mode? Just get a Mercury Technician to plug the diagnostic computer in, that will reveal everything, including hours use and at what RPM.

Dave
 

boatman192

Cadet
Joined
Aug 18, 2006
Messages
21
Re: My first 4 stroke and problems with fuel

on muffs it will rev up to 4000 rpms but when i come down to about 2000 rpms it dies---idles fine---but still i dont here the pump running or when i press the tire valve on the vapor seperator i get no pressure comong out..
 

Timestep

Petty Officer 1st Class
Joined
Jul 17, 2002
Messages
204
Re: My first 4 stroke and problems with fuel

OK, get it checked, it can be done on the boat in the water. The computer is portable.

Regards

Dave
 

boatman192

Cadet
Joined
Aug 18, 2006
Messages
21
Re: My first 4 stroke and problems with fuel

i am 100 miles from a lake or a mercury dealer........Shouldnt i here the pump running after i re plug the wires back in??
 
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