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 Decrease in speed with VMAX Motor
#1459530
07/17/07 02:34 PM
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Joined: Jul 2006
Posts: 381
SkeeterB
OP
Angler
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OP
Angler
Joined: Jul 2006
Posts: 381 |
Guys and Girls
I have been having problems with my 1998 225hp Vmax ox66 with fuel injection. When I am driving across the lake in high speeds the motor seems to loose power. When I lift my foot off my hot foot and then press down again it goes fast again. This happens over and over. The RPM stay the same but speed slows down. What could be causing this?
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 Re: Decrease in speed with VMAX Motor
[Re: SkeeterB]
#1459594
07/17/07 02:55 PM
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Joined: Oct 2005
Posts: 86,128
John175☮
MACHO MAN
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MACHO MAN
Joined: Oct 2005
Posts: 86,128 |
Trump won three times
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Re: Decrease in speed with VMAX Motor
[Re: SkeeterB]
#1459598
07/17/07 02:56 PM
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Joined: Aug 2006
Posts: 7,186
steve@S2Marine
TFF Celebrity
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TFF Celebrity
Joined: Aug 2006
Posts: 7,186 |
sounds like a clogged fuel injector, or could be a fuel pump.
Perhaps OPTI will jump in here and give his professional opinion.
S2 Marine 714 S. Main Quitman, Tx. 75783 www.s2marine.coms2marinesales@gmail.com Blazer Boats, Excel Boats, Sun Chaser Pontoons, Thor boats, Legend Craft Boats
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Re: Decrease in speed with VMAX Motor
[Re: steve@S2Marine]
#1465888
07/19/07 05:15 PM
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Joined: Jul 2006
Posts: 381
SkeeterB
OP
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Re: Decrease in speed with VMAX Motor
[Re: SkeeterB]
#1475483
07/23/07 11:09 PM
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Joined: Apr 2005
Posts: 45,723
Big Red 12
TFF Guru
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TFF Guru
Joined: Apr 2005
Posts: 45,723 |
Could be the fuel injectors need cleaning as mentioned or water in the fuel.
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Re: Decrease in speed with VMAX Motor
[Re: Big Red 12]
#1475764
07/24/07 01:09 AM
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Joined: Jul 2007
Posts: 20
DavidnTex
Outdoorsman
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Outdoorsman
Joined: Jul 2007
Posts: 20 |
Have you been running Ring Free?
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Re: Decrease in speed with VMAX Motor
[Re: DavidnTex]
#1475774
07/24/07 01:14 AM
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Joined: Jul 2006
Posts: 381
SkeeterB
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Re: Decrease in speed with VMAX Motor
[Re: SkeeterB]
#1476103
07/24/07 02:46 AM
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Joined: May 2003
Posts: 12,334
PGR Mike
TFF Guru
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TFF Guru
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Posts: 12,334 |
Ok, Being an EFI engine, you loose an injector, you loose a cyclinder. This meaning, if an injector (the injector is like it's own little electric fuel pump) quits, you loose the fuel/oil supply going into the engine. After just a few seconds of that cylinder firing, and you don't regain that injector, it can be very costly repairs.
If you don't have the equipment of working on and diagnosing a computer driven fuel injected motor, just take it in to a mechanic and pay them to diagnose the problem, then evaluate what you want to do.
You screw around with possible bad injectors, and you can be eating a powerhead in a hurry.
Hopefully it is just a pack or ignition problem. But without the equipment to run the diagnostics, you are shooting in the dark on your own almost.
Last edited by North Texas Fiberglass; 07/24/07 02:47 AM.
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Re: Decrease in speed with VMAX Motor
[Re: PGR Mike]
#1476155
07/24/07 03:24 AM
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Joined: Apr 2007
Posts: 3,686
spanky's
TFF Team Angler
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TFF Team Angler
Joined: Apr 2007
Posts: 3,686 |
 spankysboatrepair@yahoo.com (817)475-4539
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Re: Decrease in speed with VMAX Motor
[Re: spanky's]
#1476288
07/24/07 07:55 AM
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Joined: Jul 2006
Posts: 381
SkeeterB
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Angler
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OP
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Posts: 381 |
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