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#10981458 - 07/16/15 03:35 PM Hard time getting on plane - Z520
Jkrez Offline
Outdoorsman

Registered: 01/19/14
Posts: 241
Loc: Kingwood, TX
I have a 2010 Z520 with a Mercury 250 Pro XS running with a 27p Fury. I got the motor serviced recently and everything checks out fine.

From a stand still in the water, I can only get on plane if I gas it to 3500 RPM...anything over 3500 will cause the prop to spin out, anything under that and the bow won't go over. It takes a good 5-8 seconds to get the bow over and to get on plane. When it finally does get on plane, the prop will spin out for a quick second, then settle in and run like a dream.

This has been happening for about a year now, but I always keep forgetting to ask you guys about it.

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#10981464 - 07/16/15 03:37 PM Re: Hard time getting on plane - Z520 [Re: Jkrez]
fouzman Offline
Methuselah

Registered: 01/20/09
Posts: 43053
Loc: Houston, TX
You're over propped and your motor may be a hair too high. Go with a 25p, especially in this heat.
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"Things turn out best for those who make the best of the way things turn out" - Zachary Troy Schrah - a young man with vision far beyond his years.

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#10981479 - 07/16/15 03:41 PM Re: Hard time getting on plane - Z520 [Re: Jkrez]
snickers Offline
TFF Team Angler

Registered: 05/08/09
Posts: 3551
your motor is to high and your prop is a hair big for the high humidity. start by measuring the bottom of your pad to the center of your propshaft. It should be near 3 and 1/2 inches. I am guessing you have a manual jack plate. I would try a 25 or a 26 tempest plus

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#10981480 - 07/16/15 03:41 PM Re: Hard time getting on plane - Z520 [Re: Drummond1]
Jkrez Offline
Outdoorsman

Registered: 01/19/14
Posts: 241
Loc: Kingwood, TX
This has been happening for about a year, and 6 months ago I had everything serviced and the prop hub changed, and it's still doing it. So I don't think that's what it is

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#10981486 - 07/16/15 03:42 PM Re: Hard time getting on plane - Z520 [Re: snickers]
Jkrez Offline
Outdoorsman

Registered: 01/19/14
Posts: 241
Loc: Kingwood, TX
Originally Posted By: snickers
your motor is to high and your prop is a hair big for the high humidity. start by measuring the bottom of your pad to the center of your propshaft. It should be near 3 and 1/2 inches. I am guessing you have a manual jack plate. I would try a 25 or a 26 tempest plus


My Atlas jackplate and trim are all the way down as far as they go. Could I still be too high if I have a hydraulic plate?

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#10981487 - 07/16/15 03:42 PM Re: Hard time getting on plane - Z520 [Re: Jkrez]
fouzman Offline
Methuselah

Registered: 01/20/09
Posts: 43053
Loc: Houston, TX
You can't turn a 27p on that rig in this heat. Go down to a 25p.
_________________________
"Things turn out best for those who make the best of the way things turn out" - Zachary Troy Schrah - a young man with vision far beyond his years.

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#10981491 - 07/16/15 03:43 PM Re: Hard time getting on plane - Z520 [Re: fouzman]
snickers Offline
TFF Team Angler

Registered: 05/08/09
Posts: 3551
this will fix you
Originally Posted By: fouzman
You can't turn a 27p on that rig in this heat. Go down to a 25p.

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#10981494 - 07/16/15 03:43 PM Re: Hard time getting on plane - Z520 [Re: fouzman]
Jkrez Offline
Outdoorsman

Registered: 01/19/14
Posts: 241
Loc: Kingwood, TX
Originally Posted By: fouzman
You can't turn a 27p on that rig in this heat. Go down to a 25p.


I think that's what I'm going to do. I didn't know heat/humidity had that kind of an impact on props. To be honest, I don't really understand props all that well!

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#10981503 - 07/16/15 03:46 PM Re: Hard time getting on plane - Z520 [Re: Jkrez]
Outdoordude Offline
Extreme Angler

Registered: 04/20/09
Posts: 1958
Not so much the prop as it is the engine losing horsepower due to high heat and humidity. I have to downsize props in the summer too, many do.

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#10981506 - 07/16/15 03:47 PM Re: Hard time getting on plane - Z520 [Re: Jkrez]
snickers Offline
TFF Team Angler

Registered: 05/08/09
Posts: 3551
just borrow one and try it. I am close to dallas and you can try mine anytime. I run a 25 tempest plus

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#10981513 - 07/16/15 03:49 PM Re: Hard time getting on plane - Z520 [Re: Jkrez]
fouzman Offline
Methuselah

Registered: 01/20/09
Posts: 43053
Loc: Houston, TX
http://www.anglerworld.com/bassfish/bassboard/boats_motors/message.html?message_id=217518

Read this Jkrez and outdoor dude is correct but I didn't want to get into that. At 85% or higher humidity, your motor will not atomize fuel/air mixture as efficiently and you lose horsepower making it harder for your engine to turn that 27p.
_________________________
"Things turn out best for those who make the best of the way things turn out" - Zachary Troy Schrah - a young man with vision far beyond his years.

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#10981583 - 07/16/15 04:23 PM Re: Hard time getting on plane - Z520 [Re: Jkrez]
Jkrez Offline
Outdoorsman

Registered: 01/19/14
Posts: 241
Loc: Kingwood, TX
Can yall recommend the optimal prop?

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#10981590 - 07/16/15 04:27 PM Re: Hard time getting on plane - Z520 [Re: Jkrez]
Frank the Tank Online   content
TFF Guru

Registered: 02/27/13
Posts: 17582
Loc: Rockwall & a lake somewhere
I'm having the same issue with my Skeeter, running a 27M, I have lost all kinds of hole-shot and speed just in the last few weeks, about to drop down to a 25T-1 for summertime......good times are back!
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Talon Lures - high quality, hand tied lures made in Texas.
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#10981619 - 07/16/15 04:40 PM Re: Hard time getting on plane - Z520 [Re: Jkrez]
RedSkeeter Offline



Registered: 04/12/05
Posts: 12916
Loc: Emory, Texas
I would contact Steve's prop shop in Quitman(call him) or he hangs in the lower sections of the forum...
Boats and Motors and General Equipment...
He'll prolly get you to try a 25 Fury.

Try this:
http://www.google.com/search?q=Steves+pr...p;client=safari
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#10981628 - 07/16/15 04:44 PM Re: Hard time getting on plane - Z520 [Re: Jkrez]
Trickster Offline
TFF Guru

Registered: 07/27/07
Posts: 32950
Loc: Plano TX
Originally Posted By: Jkrez
Can yall recommend the optimal prop?
I have a lighter boat but went through the same issues. I went to a 25P Fury and it planes out much better in the warmer conditions.


Edited by Trickster (07/16/15 04:45 PM)
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