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Jan 23rd, 2013
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Planing issue #13238335 08/07/19 01:08 AM
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Mr. Skeeter Offline OP
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Hey guys, hoping I can get some help here..
I’ve got a 94 mercury 200hp xri efi, I noticed it started to get on plane slow slow slow, and now it won’t plane most of the time. When I hammer down it will start to bog down, but if it does get on plane it runs fine at wot. But once I come off and fish it’s a hit or miss if it will go. Idles fine and revs fine. I’ve never had an issue until this year.
I’m wondering if it could be a failing fuel pump, I’m replacing all the gas lines this week. Compression is good on all cylinders.
I’d appreciate the help!

Re: Planing issue [Re: Mr. Skeeter] #13238356 08/07/19 01:23 AM
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GIG'EM AGGIES Offline
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I think you're going about it the right way. Starting with fuel lines is not only smart but this TFF'er thinks that's your problem. If those are original then ethanol has had time to delaminate them. Ask me how I know.


I am a Senager. (Senior teenager) I have everything that I wanted as a teenager, only 50 years later. I get an allowance every month. I have PU truck and a bass boat, I am blessed.
Conscience never acquits, it either accuses or excuses.
Re: Planing issue [Re: GIG'EM AGGIES] #13238376 08/07/19 01:32 AM
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Mr. Skeeter Offline OP
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Should I go ahead and rebuild the fuel pump?

Re: Planing issue [Re: Mr. Skeeter] #13238391 08/07/19 01:47 AM
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GIG'EM AGGIES Offline
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See what happens after you change the fuel lines. That may be all that's needed. One step at a time. Good luck. thumb


I am a Senager. (Senior teenager) I have everything that I wanted as a teenager, only 50 years later. I get an allowance every month. I have PU truck and a bass boat, I am blessed.
Conscience never acquits, it either accuses or excuses.
Re: Planing issue [Re: Mr. Skeeter] #13239443 08/07/19 09:12 PM
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Replace fuel lines and primer bulb from tank to pump.

When was the last time you had your injectors cleaned and flow tested?

Re: Planing issue [Re: Mr. Skeeter] #13239546 08/07/19 10:42 PM
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Mr. Skeeter Offline OP
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It’s been 6 years, not sure how often you need to do it. I will be replaying all the fuel lines Friday.

Re: Planing issue [Re: Mr. Skeeter] #13239550 08/07/19 10:43 PM
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Mr. Skeeter Offline OP
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I’ve taken it to a shop and they wanted to clean them for 600! And be put 6 weeks, I’m no mechanic but wouldn’t it affect its top end speed if they weren’t synced?

Re: Planing issue [Re: GIG'EM AGGIES] #13239967 08/08/19 08:51 AM
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cbeathard Offline
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Originally Posted by GIG'EM AGGIES
I think you're going about it the right way. Starting with fuel lines is not only smart but this TFF'er thinks that's your problem. If those are original then ethanol has had time to delaminate them. Ask me how I know.

i second this

Re: Planing issue [Re: Mr. Skeeter] #13240227 08/08/19 01:59 PM
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boatman025 Offline
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I would do fuel lines and do fuel pump and see what happen the lift pump get week from all this good gas we have also


Hughes Marine
3855 Osage Lane
Wylie ,Texas
Re: Planing issue [Re: Mr. Skeeter] #13241764 08/09/19 01:47 PM
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Gamblinman Offline
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Originally Posted by Mr. Skeeter
I’ve taken it to a shop and they wanted to clean them for 600! And be put 6 weeks, I’m no mechanic but wouldn’t it affect its top end speed if they weren’t synced?


No. Unlike the newer direct injected motors, EFI motors inject into the crankcase.

Re: Planing issue [Re: Mr. Skeeter] #13244062 08/11/19 09:06 PM
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Mr. Skeeter Offline OP
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Well no luck with the fuel lines and new fuel pump kit

Re: Planing issue [Re: Mr. Skeeter] #13244516 08/12/19 11:37 AM
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Dubee Offline
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Make sure you are getting good spark on all cylinders

Re: Planing issue [Re: Mr. Skeeter] #13247044 08/14/19 02:50 AM
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Injectors should be cleaned & flow tested every year or 100 hours whichever comes first. Southern Performance Injectors in Friendswood Tx.


ELITE POWER SYSTEMS/ Elite Fishing Products
Lithium Battery & Charging Systems, Soft Plastics, Tackle,Tokyo Rigs
Tight lines & stay safe out there.Gods blessings
Re: Planing issue [Re: Mr. Skeeter] #13247048 08/14/19 02:51 AM
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Gamblinman Offline
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Check the fuel pressure while running to make sure its in spec for that engine. Also, see how long it holds pressure after shutdown.

Re: Planing issue [Re: Mr. Skeeter] #13247050 08/14/19 02:53 AM
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Southern Performance Injectors in Friendswood Tx.$25 per injector & about 10-14 day turnaround


ELITE POWER SYSTEMS/ Elite Fishing Products
Lithium Battery & Charging Systems, Soft Plastics, Tackle,Tokyo Rigs
Tight lines & stay safe out there.Gods blessings
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