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Max Online: 36273 @ 01/23/13 02:34 PM
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#10900105 - 06/06/15 07:04 PM Hawk with mercury 225
Aggie34 Offline
Outdoorsman

Registered: 02/01/15
Posts: 175
Loc: Glen Rose
Hey guys, I have a 2001 21' hawk boat with a merucry 225 efi. I have a jackplate, and a 25 prop. My hds is saying it is topping out around 55mph. Dies this sound resonable?
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#10900262 - 06/06/15 08:28 PM Re: Hawk with mercury 225 [Re: Aggie34]
HasBen Online   content
TFF Guru

Registered: 06/12/03
Posts: 21246
Loc: Nacogdoches
Not ever known as a fast hull, but I would think it should be running well into the 60's with that motor.
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#10900274 - 06/06/15 08:34 PM Re: Hawk with mercury 225 [Re: Aggie34]
Kens3313 Offline
Extreme Angler

Registered: 11/14/05
Posts: 2042
Loc: Conroe, TX
I have the same boat just a 99 model and a 225 mariner EFI, 4 blade prop, unknown of the pitch. I have had mine up to 70 when boat was empty when I bought it in 2005, can get about 63 to 65 tops now, But I hardly ever run faster than 45 anyways so top speed doesn't really bother me. I pulled all my injectors out a few years ago and had them tested then rebuilt and it made a world of difference. You may want to check into it, Its not hard to pull them out and install them yourself.
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#10900285 - 06/06/15 08:38 PM Re: Hawk with mercury 225 [Re: Aggie34]
TxFisherman03 Offline
Angler

Registered: 04/07/10
Posts: 416
Loc: Arlington, Tx
Rpm's?
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#10900397 - 06/06/15 09:47 PM Re: Hawk with mercury 225 [Re: Aggie34]
Aggie34 Offline
Outdoorsman

Registered: 02/01/15
Posts: 175
Loc: Glen Rose
When I bought the boat the guy hadn't run it in a year or so. He put stabil and it helped but still had a lot of gunk. I had the fuel pump cleaned out since it was stopped up. Wasn't sure if it was a fuel pump or injector problem. If my hdi7 was right the first time I took it out it hit 66mph.
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#10900522 - 06/06/15 11:30 PM Re: Hawk with mercury 225 [Re: Aggie34]
Aggie34 Offline
Outdoorsman

Registered: 02/01/15
Posts: 175
Loc: Glen Rose
Rpms have been running around 5100-5200
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#10900567 - 06/07/15 12:37 AM Re: Hawk with mercury 225 [Re: Aggie34]
200Hawk21 Offline
Extreme Angler

Registered: 10/03/10
Posts: 1369
Loc: texas ,usa
I had a 99 Hawk with a Mercury 200 Optimax and that boat would easily run mid 60's fully loaded and a couple of passengers.

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#10900655 - 06/07/15 07:39 AM Re: Hawk with mercury 225 [Re: Aggie34]
J-2 Online   content


Registered: 06/12/09
Posts: 3848
Loc: Flower Mound TX
You should be well into the 60's and your RPMs should be closer to 6k.
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#10900687 - 06/07/15 08:00 AM Re: Hawk with mercury 225 [Re: Aggie34]
CDubSmith2 Offline
Angler

Registered: 08/10/13
Posts: 252
Loc: Wortham, Tx
Downsize your prop pitch

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#10900791 - 06/07/15 09:16 AM Re: Hawk with mercury 225 [Re: Aggie34]
Aggie34 Offline
Outdoorsman

Registered: 02/01/15
Posts: 175
Loc: Glen Rose
I have two props that came with the boat but they are the exact same. I need to find somebody and switch.

I think I'll start by adding some quickleen first. Then once I get back from vacation I can start going through the fuel pump and injectors.

I knew there was more to that mercury.
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#10901375 - 06/07/15 03:53 PM Re: Hawk with mercury 225 [Re: Aggie34]
Aggie34 Offline
Outdoorsman

Registered: 02/01/15
Posts: 175
Loc: Glen Rose
Took it out today. Topped out at 60 mph around 5500 rpms. However the take off was horrible. No power, I had to slowly ease into it or it would just bog down and never get in plane
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#10911516 - 06/11/15 04:10 PM Re: Hawk with mercury 225 [Re: Aggie34]
Aggie34 Offline
Outdoorsman

Registered: 02/01/15
Posts: 175
Loc: Glen Rose
Yep, just found out I need a new fuel pump. The pump is only putting at 45psi
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#10912776 - 06/12/15 10:14 AM Re: Hawk with mercury 225 [Re: Aggie34]
stick steering Offline
TFF Team Angler

Registered: 08/06/07
Posts: 4591
You need to have someone check your set up,around 3.5 below,if its OK ,it should pull a 25p ,then you got a problem somewhere else,probably in fuel system

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