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Jan 23rd, 2013
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Yamaha SHO ECU flashing #12740201
05/02/18 08:25 PM
05/02/18 08:25 PM
Joined: Aug 2006
Posts: 6,902
Quitman,Tx
steve@hydrodynamics Offline OP
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Quitman,Tx
i'll be doing ECU flashes here at the shop.
as most know, i'm a NIZPRO Super Charger dealer and installer.

well.. nizpro has written a nice powerful ecu program for those that don't want
the supercharger.

cost is 640.00 and i do them right here in my shop.

pm me here or email me at info@hydrodynamics-usa.com

i should be licensed in the next day or two.

thanks
Steve.

Re: Yamaha SHO ECU flashing [Re: steve@hydrodynamics] #12741076
05/03/18 01:02 PM
05/03/18 01:02 PM
Joined: Aug 2006
Posts: 6,902
Quitman,Tx
steve@hydrodynamics Offline OP
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if you wish to have this done.
please make a call or email or message to me with your
model number and serial number of engine.
i'll need 48 hrs to setup the appointment and do the flash here

Re: Yamaha SHO ECU flashing [Re: steve@hydrodynamics] #12741821
05/03/18 06:49 PM
05/03/18 06:49 PM
Joined: Mar 2007
Posts: 12,349
Plano,Texas
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forkduc Online content
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Steve
How does this effect the warranty?

Re: Yamaha SHO ECU flashing [Re: forkduc] #12741860
05/03/18 07:12 PM
05/03/18 07:12 PM
Joined: Aug 2006
Posts: 6,902
Quitman,Tx
steve@hydrodynamics Offline OP
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Originally Posted By: forkduc
Steve
How does this effect the warranty?


if you stay with the stock limiter, it won't effect it.

if you choose the 7k limiter and run it there... it'll show up if they ever pull the
max rpms off the computer if you have an issue.

Re: Yamaha SHO ECU flashing [Re: steve@hydrodynamics] #12743057
05/04/18 03:12 PM
05/04/18 03:12 PM
Joined: Mar 2007
Posts: 12,349
Plano,Texas
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Whats the benefit?

Re: Yamaha SHO ECU flashing [Re: steve@hydrodynamics] #12743100
05/04/18 03:37 PM
05/04/18 03:37 PM
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Quitman,Tx
steve@hydrodynamics Offline OP
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more horsepower and torque through out the midrange.
better hole shots
much better midrange power
and of course ... a mph increase.. usually requiring a new
prop of around 2 degrees higher pitch. 7-12 mph increase.

and a high percentage of the time the fuel economy improves as well
as the tune is very effecient.

Re: Yamaha SHO ECU flashing [Re: steve@hydrodynamics] #12743106
05/04/18 03:39 PM
05/04/18 03:39 PM
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Quitman,Tx
steve@hydrodynamics Offline OP
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Makes 310 hp at 6950

with the 6400 limiter it's 298-300 hp at 6400

Re: Yamaha SHO ECU flashing [Re: steve@hydrodynamics] #12743359
05/04/18 06:37 PM
05/04/18 06:37 PM
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Plano,Texas
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If speed isn't an issue, should I just stay with my std 250 on an FX21?

Re: Yamaha SHO ECU flashing [Re: forkduc] #12744681
05/05/18 11:35 PM
05/05/18 11:35 PM
Joined: Jul 2011
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Godley Tx
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Originally Posted By: forkduc
If speed isn't an issue, should I just stay with my std 250 on an FX21?


Yes

Re: Yamaha SHO ECU flashing [Re: steve@hydrodynamics] #12744838
05/06/18 02:19 AM
05/06/18 02:19 AM
Joined: Nov 2007
Posts: 3,667
scotland tx
ssmith Online content
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if you fish tournaments it could get dicey on a polygraph if you really want to go fast in a boat why nit get a Allison or bullit .

Re: Yamaha SHO ECU flashing [Re: forkduc] #12745988
05/07/18 12:56 PM
05/07/18 12:56 PM
Joined: Aug 2006
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Quitman,Tx
steve@hydrodynamics Offline OP
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Originally Posted By: forkduc
If speed isn't an issue, should I just stay with my std 250 on an FX21?


your the only one that can answer that.


as far as "other" benefits. more available power from an ecu flash means

1) quicker hole shots, reducing fuel consumption
2) quicker and more power at mid range means a tad higher speed at that mid range
3) of course top end is there when or if you want it.

Re: Yamaha SHO ECU flashing [Re: steve@hydrodynamics] #12750373
05/10/18 03:18 PM
05/10/18 03:18 PM
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Quitman,Tx
steve@hydrodynamics Offline OP
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both ecu flashes are now licensed and available

6400 limiter
7000 limiter

call for details and scheduling.

thanks

Re: Yamaha SHO ECU flashing [Re: steve@hydrodynamics] #12751626
05/11/18 03:10 PM
05/11/18 03:10 PM
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Plano,Texas
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I have a std 25T1 prop. Need to change? How long to do it?

Re: Yamaha SHO ECU flashing [Re: forkduc] #12751716
05/11/18 04:14 PM
05/11/18 04:14 PM
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Quitman,Tx
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Originally Posted By: forkduc
I have a std 25T1 prop. Need to change? How long to do it?


depending on how many rpms you currently turn, you may need to go up 1 to 2 degrees in prop pitch.

once i get the serial # and model # to nizpro to verify the current program (which can take 1 to 2 days)

in house it'll only take me about 30 minutes to do.

Re: Yamaha SHO ECU flashing [Re: steve@hydrodynamics] #12751906
05/11/18 07:07 PM
05/11/18 07:07 PM
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Plano,Texas
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Right at 5600

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