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#11305682 - 12/27/15 08:39 AM Boat will NOT get on pad
team hooti josh Offline
Outdoorsman

Registered: 01/22/09
Posts: 90
I have a nitro 591 with a merc optimax. If I'm by myself with no water in livewells it's ok getting on pad but not great. Add a co-angler full livewells you can literally just plow water and it will never break over. Luckily my buddies are cool with standing on the front deck to get the thing to break over and get on pad. I don't know if it's a prop issue or what. I need help with this one bad. Any ideas or good places to take it? I live in Arlington. Thanks guys!

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#11305707 - 12/27/15 08:54 AM Re: Boat will NOT get on pad [Re: team hooti josh]
team hooti josh Offline
Outdoorsman

Registered: 01/22/09
Posts: 90
I am running a tempest 24 with no jack plate the boat is an 07

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#11305721 - 12/27/15 09:06 AM Re: Boat will NOT get on pad [Re: team hooti josh]
T Bird Online   content
TFF Team Angler

Registered: 03/07/10
Posts: 3906
Loc: Temple, Texas USA
Try experimenting with your the prop ventilation plug configuration.
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#11305932 - 12/27/15 11:35 AM Re: Boat will NOT get on pad [Re: team hooti josh]
team hooti josh Offline
Outdoorsman

Registered: 01/22/09
Posts: 90
I have messed with those it doesn't do anything but blow out and rev up. I think I need a professional to look at it

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#11306150 - 12/27/15 01:21 PM Re: Boat will NOT get on pad [Re: team hooti josh]
2015fordnut Online   sick
Extreme Angler

Registered: 06/24/09
Posts: 1702
Loc: Garland, TX
Nitro's are notorious for being underpowered. What horsepower are you running, rpm when you can get to wide open throttle? Just saw you are running a Tempest 24 you may need to drop to a 23.

Contact Steve he can make some recommendations. i.e. jackplate, prop, or just a prop rework.

I just had a jackplate put on my Triton as well as they reworked my prop adding cup and edging the blades. Mine liked like a 2x4. Hope this weather clears up, man I can't wait to get it out now.

BTW they are closed until Jan 4th for the holidays.

http://www.stevescustomprops.com/


Edited by 2015fordnut (12/27/15 01:23 PM)
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#11306224 - 12/27/15 02:06 PM Re: Boat will NOT get on pad [Re: team hooti josh]
team hooti josh Offline
Outdoorsman

Registered: 01/22/09
Posts: 90
It's a 150. Rpm at wot is around 5600 when on pad. Getting on pad though it just drags around 2800-3000 rpm

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#11306253 - 12/27/15 02:27 PM Re: Boat will NOT get on pad [Re: team hooti josh]
2015fordnut Online   sick
Extreme Angler

Registered: 06/24/09
Posts: 1702
Loc: Garland, TX
Yea I'm running a 23 Tempest Plus. I've never had a problem getting my Triton on pad, it is a 18.6ft dual console with a 150 xr6. Top end was 60 at wot. I put the jackplate on for some improved performance as well as I've wanted one since I bought it. I would still recommend talking to Steve and Josh though and you may consider a jackplate too.
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#11306463 - 12/27/15 03:33 PM Re: Boat will NOT get on pad [Re: team hooti josh]
Tommie Offline
Pro Angler

Registered: 12/18/10
Posts: 899
Loc: Longview, Tx
Has this boat done this since new or has it just recently started this issue?
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#11306565 - 12/27/15 04:16 PM Re: Boat will NOT get on pad [Re: team hooti josh]
team hooti josh Offline
Outdoorsman

Registered: 01/22/09
Posts: 90
It's started getting progressively worse over the last year or so. It's really noticeable in the warmer water. I tried a 23 this summer and still couldn't tell a difference.

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#11306698 - 12/27/15 05:28 PM Re: Boat will NOT get on pad [Re: team hooti josh]
RickS Offline
Outdoorsman

Registered: 08/08/13
Posts: 184
Loc: Santa Fe NM
Make sure motor isn't mounted too low. When I first got my 97 Nitro 800 I had a similar problem. My boat would go into a violent chine walk at around fifty mph. Turned out motor was mounted to low. Kind of hard to imagine it wouldn't be rigged right all this time....but I guess it's possible. Different boat lengths and weights makes prop selection tricky. My boat performs awesome with a 21 pitch Mercury Revolution 4. Most of the lakes I frequent are from 3200- 6220 feet elevation. It ran pretty quick at Lake Fork this past spring around 64MPH. Good luck! Hope you figure it out

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#11306766 - 12/27/15 05:57 PM Re: Boat will NOT get on pad [Re: team hooti josh]
gary purdy Online   content
TFF Guru

Registered: 05/24/03
Posts: 10515
Loc: Littlefield Tx & Lake A. H. US...
You need to have someone check out the complete fuel system and ignition system. Have had several of these Optimax motors act like yours when a coil is going bad but I have also seen this when fuel pump is getting weak.
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“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” GOD IS GOOD

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#11307058 - 12/27/15 08:17 PM Re: Boat will NOT get on pad [Re: team hooti josh]
2015fordnut Online   sick
Extreme Angler

Registered: 06/24/09
Posts: 1702
Loc: Garland, TX
I would defiantly do what Gary says also if you haven't then do a de-carb and tune up. I put a can of Seafoam for every 16 gal of fuel I put in my boat every time. You can't trust the fuels we are getting these days.
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#11307283 - 12/27/15 10:10 PM Re: Boat will NOT get on pad [Re: gary purdy]
Ol Man River Offline
Extreme Angler

Registered: 06/16/11
Posts: 1221
Loc: Orange, Texas
Originally Posted By: gary purdy
You need to have someone check out the complete fuel system and ignition system. Have had several of these Optimax motors act like yours when a coil is going bad but I have also seen this when fuel pump is getting weak.


This^^^^^I had similar issues and had a bad fuel pump. On another rig my stator needed replacing....would barely plane boat off. Good luck!

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#11307446 - 12/28/15 06:23 AM Re: Boat will NOT get on pad [Re: team hooti josh]
Tommie Offline
Pro Angler

Registered: 12/18/10
Posts: 899
Loc: Longview, Tx
Has you boat gained weight over the last few years? Extra gear maybe? Any water intrusion? I have to assume an 07 Nitro has wood construction? Just something to think about if you don't think its a motor issue.
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#11307469 - 12/28/15 06:58 AM Re: Boat will NOT get on pad [Re: team hooti josh]
Flippin-Out Offline
Extreme Angler

Registered: 02/25/15
Posts: 1564
Loc: Magnolia, TX
Originally Posted By: team hooti josh
It's a 150. Rpm at wot is around 5600 when on pad. Getting on pad though it just drags around 2800-3000 rpm


You say the boat started this and has gotten progressively worse over the past year. When it wasn't having an issue, what was your RPM once on pad? What's the recommended max RPM range for your engine? (Remember, lower than recommended at max is not a good thing - it assures the boat is strained and poor performing.)

Has the prop been changed? Do you recall any solid obstruction hits with the prop?

Have you ever changed the spark plugs, fuel filter, or done any of the other proper maintenance on the engine?

On the spark plugs, if they've been changed, was the EXACT recommended plug used? Has anyone with expertise pulled the plugs to look for signs of a dead/misfiring cylinder?


Edited by Flippin-Out (12/28/15 06:58 AM)

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