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Max Online: 36273 @ 01/23/13 02:34 PM
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#12251973 - 05/18/17 03:08 PM 1993 Merc 225EFI power issue
halfbakedi420 Offline
Green Horn

Registered: 06/15/12
Posts: 11
Loc: texas
The motor bogs upon trying to blast off. After a little while it will get on plane and Hall butte no problem. I have to ride a wheelie for at least a minute or two. Then it will gain power and eventually get on plane and runs like a top


Edited by halfbakedi420 (05/18/17 03:08 PM)
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i'll keep my guns, my money and my freedom, you can keep your change! 6 hard inches, 12 inch attitude.

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#12251995 - 05/18/17 03:23 PM Re: 1993 Merc 225EFI power issue [Re: halfbakedi420]
Bruce's Guide Service Online   content
TFF Team Angler

Registered: 09/04/03
Posts: 4064
Loc: southlake
Trim or Prop
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#12254191 - 05/19/17 09:46 PM Re: 1993 Merc 225EFI power issue [Re: halfbakedi420]
halfbakedi420 Offline
Green Horn

Registered: 06/15/12
Posts: 11
Loc: texas
No ....it's like the motor is bogging down and will not gain power.
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i'll keep my guns, my money and my freedom, you can keep your change! 6 hard inches, 12 inch attitude.

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#12254517 - 05/20/17 09:23 AM Re: 1993 Merc 225EFI power issue [Re: halfbakedi420]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 11195
Loc: Littlefield Tx & Lake A. H. US...
First thing to do is make sure all cylinders are good and hitting. Check compression and do a spark test. Not only if it`s firing to each sparkplug but strength of the spark. Next is all fuel components check. Check ignition timing. Set TPS. Check operation of throttle making sure it gets full throttle. Many times I will connect a remote fuel tank with known good fuel and try it. I have seen several outboard motors that run like a dog because of the fuel. Sometimes guys put too much additive or pour in 3 or 4 different additives. They can also run bad because of carbon buildup. They also can have performance issues because of excessive boat weight or incorrect weight distribution. I have seen several bass boats that you don`t want to fill up with fuel. Others you don`t want to fill up the livewells. Have seen boats that have water trapped in the hull and others that the flotation has become water logged. Posting this for you to understand, many things can cause this.
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#12256508 - 05/21/17 11:34 PM Re: 1993 Merc 225EFI power issue [Re: halfbakedi420]
halfbakedi420 Offline
Green Horn

Registered: 06/15/12
Posts: 11
Loc: texas
Right on ...I appreciate the information. We are working on doing a few of these, like the external gas tank with good gas. I'm going to check the plugs and Spark around the same time. Then I will work through your list and see what I come up with. thanks for your input
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i'll keep my guns, my money and my freedom, you can keep your change! 6 hard inches, 12 inch attitude.

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#12256549 - 05/22/17 03:59 AM Re: 1993 Merc 225EFI power issue [Re: halfbakedi420]
TLW Online   content
Extreme Angler

Registered: 11/16/06
Posts: 2235
Loc: ft worth
Originally Posted By: halfbakedi420
No ....it's like the motor is bogging down and will not gain power.


been this way since you've had it?.. jus recently started actin' this way?.. slowly progressed over a period of time to this point or one day fine, next day terrible?

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#12256553 - 05/22/17 04:11 AM Re: 1993 Merc 225EFI power issue [Re: halfbakedi420]
Gamblinman Online   content
Extreme Angler

Registered: 11/26/02
Posts: 2935
Loc: Yantis, TX
When was the last time you had the injectors pulled and cleaned?

VST pulled and cleaned?

Changed ALL fuel lines from tank to motor with ethanol resistant lines. This includes the primer bulb.


Edited by Gamblinman (05/22/17 04:15 AM)
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#12256805 - 05/22/17 08:53 AM Re: 1993 Merc 225EFI power issue [Re: halfbakedi420]
boatman025 Offline
Angler

Registered: 07/16/10
Posts: 494
Loc: McKinney
I can check it out next week for you
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#12282404 - 06/07/17 03:14 AM Re: 1993 Merc 225EFI power issue [Re: halfbakedi420]
Grant bell Offline
Extreme Angler

Registered: 07/23/08
Posts: 1356
Loc: Kaufman forkonweekends
Did you find out what it was
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