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Jan 23rd, 2013
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Motor Bogging Down #12727870
04/24/18 12:05 AM
04/24/18 12:05 AM
Joined: May 2013
Posts: 159
Beaumont, TX
K
Kev-o Offline OP
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Kev-o  Offline OP
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K

Joined: May 2013
Posts: 159
Beaumont, TX
I have a 95 Mercury 200 XRI with fuel injection, this past Saturday while on the lake the motor would bog down close to 40 MPH. The motor would start, idle and break over fine. but when the speed is between 35-37 MPH it would bog down. Any suggestions on what the problem could be?

Thanks,
Kev-o

Re: Motor Bogging Down [Re: Kev-o] #12727937
04/24/18 12:53 AM
04/24/18 12:53 AM
Joined: Aug 2011
Posts: 2,837
Austin, Tx
B
Bob Landry Offline
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Bob Landry  Offline
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Joined: Aug 2011
Posts: 2,837
Austin, Tx
Sounds like it's starving for fuel. Old fuel hose collapsing would be my first guess..


2015 Seaark 1872 MV CC Etec-90
Two Helix 12 CHIRP SI's, , MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
2018 Robalo R180 CC, Yamaha 115

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Re: Motor Bogging Down [Re: Bob Landry] #12727981
04/24/18 01:17 AM
04/24/18 01:17 AM
Joined: May 2013
Posts: 159
Beaumont, TX
K
Kev-o Offline OP
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Kev-o  Offline OP
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Joined: May 2013
Posts: 159
Beaumont, TX
Thanks Bob, I changed the fuel line yesterday, I didn’t have time to go to the lake and run it. Hopefully I can run it before the weekend, I’ll let you know.

Re: Motor Bogging Down [Re: Kev-o] #12728314
04/24/18 12:14 PM
04/24/18 12:14 PM
Joined: Jul 2012
Posts: 1,241
Hill Country
B
boocat Offline
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boocat  Offline
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B

Joined: Jul 2012
Posts: 1,241
Hill Country
filter?

Re: Motor Bogging Down [Re: Bob Landry] #12728394
04/24/18 01:15 PM
04/24/18 01:15 PM
Joined: May 2003
Posts: 11,491
Littlefield Tx & Lake A. H. US...
gary purdy Offline
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gary purdy  Offline
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Joined: May 2003
Posts: 11,491
Littlefield Tx & Lake A. H. US...
Originally Posted By: Bob Landry
Sounds like it's starving for fuel. Old fuel hose collapsing would be my first guess..
thumb


The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
Re: Motor Bogging Down [Re: Kev-o] #12733503
04/27/18 06:10 PM
04/27/18 06:10 PM
Joined: Apr 2008
Posts: 501
Fort Worth
J
Jake Blood Offline
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Jake Blood  Offline
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Joined: Apr 2008
Posts: 501
Fort Worth
Timely post. My boat did the same thing Thursday. I started with the fuel line in, disconnected, made sure gas came out, checked the line into fuel filter, made sure gas came out, checked other side of fuel filter, fuel came out, then carbs.. spray cleaner in one hole, it should come out another.. eventually you will find a blockage that you can clear. Just my opinion with fuel issues, start at source and check all disconnections all the way to the carbs... follow the fuel flow, somewhere, you will find a blockage. If you are able to do this, it is methodical and you almost always come across the problem spot and it's almost an ah ha moment.

Re: Motor Bogging Down [Re: Kev-o] #12735180
04/29/18 12:42 PM
04/29/18 12:42 PM
Joined: May 2013
Posts: 159
Beaumont, TX
K
Kev-o Offline OP
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Kev-o  Offline OP
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Joined: May 2013
Posts: 159
Beaumont, TX
Update, after changing the fuel line last Sunday, I was able to go to the lake yesterday and run the boat. The motor ran great, no issues. Thanks for suggestions

Re: Motor Bogging Down [Re: Kev-o] #12736244
04/30/18 12:44 PM
04/30/18 12:44 PM
Joined: Apr 2008
Posts: 501
Fort Worth
J
Jake Blood Offline
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Jake Blood  Offline
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Joined: Apr 2008
Posts: 501
Fort Worth
Awesome...

Re: Motor Bogging Down [Re: Kev-o] #12736481
04/30/18 03:04 PM
04/30/18 03:04 PM
Joined: Mar 2016
Posts: 653
Pearland, TX
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dk2429 Offline
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Posts: 653
Pearland, TX
Clogged filter, check for cracks in your fuel line


Majek 22 Extreme/225 Optimax Pro XS
2006 Chevy 2500HD Silverado/6.6 Duramax LBZ


Re: Motor Bogging Down [Re: Kev-o] #12738152
05/01/18 05:02 PM
05/01/18 05:02 PM
Joined: Jun 2011
Posts: 1,539
Texas Waters
W
Woods & Water Offline
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Woods & Water  Offline
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W

Joined: Jun 2011
Posts: 1,539
Texas Waters
My 2013 Mercury 150 ProXS started bogging down above 3500-4000 rpms a few days ago and I found a collapsed inner liner in the fuel line between bulb and engine. I replaced the 3' section of line and the filter under the cowling this morning. Will test run tomorrow....pretty confident it will run good.

Re: Motor Bogging Down [Re: Kev-o] #12740696
05/03/18 01:39 AM
05/03/18 01:39 AM
Joined: Feb 2014
Posts: 117
S
scott82 Offline
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Joined: Feb 2014
Posts: 117
I have a 08 Merc. Optimax with 560 hrs. It cranks just fine. It takes about 20 seconds for water to start coming out of the back of the motor. It doesn’t run hotter than normal. But when I go to get on plane it struggles. I have to floor it and it just gradually planes out. Also, my top end speed use to be 67. Now I struggle to get it to 54. I just changed the spark plugs hoping that would solve the issue. Any ideas on what is causing this and how to fix it?

Re: Motor Bogging Down [Re: Woods & Water] #12742254
05/03/18 11:22 PM
05/03/18 11:22 PM
Joined: Jun 2011
Posts: 1,539
Texas Waters
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Woods & Water Offline
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Woods & Water  Offline
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W

Joined: Jun 2011
Posts: 1,539
Texas Waters
Originally Posted By: Ol Man River
My 2013 Mercury 150 ProXS started bogging down above 3500-4000 rpms a few days ago and I found a collapsed inner liner in the fuel line between bulb and engine. I replaced the 3' section of line and the filter under the cowling this morning. Will test run tomorrow....pretty confident it will run good.


UPDATE: The motor ran perfect yesterday after changing fuel line from bulb to engine. The collapsed liner inside the fuel line was restricting the fuel flow to the motor.

Re: Motor Bogging Down [Re: scott82] #12742272
05/03/18 11:35 PM
05/03/18 11:35 PM
Joined: Jun 2011
Posts: 1,539
Texas Waters
W
Woods & Water Offline
Extreme Angler
Woods & Water  Offline
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Joined: Jun 2011
Posts: 1,539
Texas Waters
Originally Posted By: scott82
I have a 08 Merc. Optimax with 560 hrs. It cranks just fine. It takes about 20 seconds for water to start coming out of the back of the motor. It doesn’t run hotter than normal. But when I go to get on plane it struggles. I have to floor it and it just gradually planes out. Also, my top end speed use to be 67. Now I struggle to get it to 54. I just changed the spark plugs hoping that would solve the issue. Any ideas on what is causing this and how to fix it?



I would start by checking for fire on all cylinders and compression. Then I would change the fuel filter (restricted filter will not allow enough fuel to flow). I had a bad stator once and I couldn't run as fast as normal. Also a bad prop hub could cause slippage....just thinking out loud.

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