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#11832937 - 09/16/16 06:09 PM Need some info about hpdi 300's
grout-scout Offline
TFF Celebrity

Registered: 12/08/08
Posts: 5265
Loc: Boerne, Texas
2008 or 2009, any good or are they junk?

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#11832946 - 09/16/16 06:15 PM Re: Need some info about hpdi 300's [Re: grout-scout]
Ken A. Offline
TFF Celebrity

Registered: 10/02/06
Posts: 7593
Loc: Trophy Club, TX
Mine was really good. Think is was a 2009. I had it on a Tr22 Triton and it ran really well. 81.3 on GPS with just me and a light load. That's hauling the mail for a boat that size. Never had a lick of trouble from her.


Edited by Ken A. (09/16/16 06:16 PM)

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#11832976 - 09/16/16 06:44 PM Re: Need some info about hpdi 300's [Re: grout-scout]
toofy Offline
Outdoorsman

Registered: 12/26/15
Posts: 198
Loc: Fort Worth
I didn't know there were any bass boats rated for a 300hp motor. How risky is it to just slap on a 300 if the boat is rated for maybe 250? And is it tough to find a boat shop willing to do that?

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#11833003 - 09/16/16 06:53 PM Re: Need some info about hpdi 300's [Re: grout-scout]
needmofish Offline
Pro Angler

Registered: 03/07/06
Posts: 599
Loc: hico
So far so good on mine, keep the filters changed and i run 93 octane in it.

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#11833004 - 09/16/16 06:54 PM Re: Need some info about hpdi 300's [Re: toofy]
Chris B Offline
TFF Celebrity

Registered: 05/02/03
Posts: 5565
Loc: Prosper, TX
A lot of ZX250s have 300 HPDIs. My dad has a 2008. He's never had any trouble from his.
_________________________

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#11833015 - 09/16/16 07:01 PM Re: Need some info about hpdi 300's [Re: grout-scout]
Chuck A Offline
Angler

Registered: 07/10/07
Posts: 435
Loc: Weatherford, Tx
2005 ZX250 has a 300HPDI. No problems. Runs great
_________________________
Chuck A.
Fightin' Texas Aggie '85
GIG'EM AGGIES
Skeeter ZX250
Yamaha HPDI 300

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#11833047 - 09/16/16 07:30 PM Re: Need some info about hpdi 300's [Re: grout-scout]
SkeeterRonnie Online   happy
Pot stirrer

Registered: 02/25/03
Posts: 52351
Loc: Forney TX
My 21i has a 300 on it. Runs 75 in this current weather. No problems at all. I go over it after each weekend to make sure all bolts are good and tight. Trim housing bracket bolt backed out one time, so I had to replace it (and loc tite it)
_________________________
www.rayhubbardbassclub.com

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#11833085 - 09/16/16 07:58 PM Re: Need some info about hpdi 300's [Re: toofy]
Epic backlash Offline
Pro Angler

Registered: 06/22/15
Posts: 582
Loc: Texas
Originally Posted By: toofy
I didn't know there were any bass boats rated for a 300hp motor. How risky is it to just slap on a 300 if the boat is rated for maybe 250? And is it tough to find a boat shop willing to do that?



A lot of boats have a 300 horse power rating and well suited to run it safely..... I was really surprised at the amount of people that told me my 20i was "unsafe" with the 250 on it when I was selling it......

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#11833093 - 09/16/16 08:04 PM Re: Need some info about hpdi 300's [Re: grout-scout]
HasBen Offline
TFF Guru

Registered: 06/12/03
Posts: 20977
Loc: Nacogdoches
As long as the boat is over 20', you are into unlimited horsepower. Now, the manufacturer may put a plate on your boat stating "recommended max" or "maximum" horsepower, but I believe this is more an attempt to limit their liability or warranty. My understanding is it is not a Coast Guard requirement on over 20' boats.
_________________________
"There is a grey blur and a green blur. I try to stay on the gray one" Joey Dunlap, Isle of Man rider


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#11833116 - 09/16/16 08:17 PM Re: Need some info about hpdi 300's [Re: grout-scout]
ssmith Offline
Extreme Angler

Registered: 11/22/07
Posts: 2355
Loc: scotland tx
if you buy one with a 300 on better expect to have it a long time because they are hard to sell some tournament trails don't allow them.there is not that much difference in performance in a Yamaha 250 to a 300.

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#11833123 - 09/16/16 08:20 PM Re: Need some info about hpdi 300's [Re: grout-scout]
GIG'EM AGGIES Offline
Pro Angler

Registered: 05/14/14
Posts: 574
Loc: texas
Saw a Bass Cat with a 400 on it. Guess if you can afford it they'll mount it. A 150 gets me everywhere I want to go and always on time.

smile
_________________________
No man's life, liberty or property is safe while the legislature is in session.
Mark Twain ( 1866 )

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#11833443 - 09/16/16 11:36 PM Re: Need some info about hpdi 300's [Re: grout-scout]
grout-scout Offline
TFF Celebrity

Registered: 12/08/08
Posts: 5265
Loc: Boerne, Texas
Problem is that when you're looking at used boats you kinda get to buy what's available. You can't pick and choose options.

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#11833547 - 09/17/16 07:11 AM Re: Need some info about hpdi 300's [Re: grout-scout]
Billy Blazer 300 HPDI Offline
Extreme Angler

Registered: 08/16/08
Posts: 1915
Loc: Pearland Texas/Rayburn Country...
I had an 2005 300 HPDI. Best motor I ever owned, my guess the best I ever will. It was one strong motor and no problems. I liked the HPDI's better than the mercs I run now.
_________________________
Thanks, Billy

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#11833549 - 09/17/16 07:17 AM Re: Need some info about hpdi 300's [Re: grout-scout]
grout-scout Offline
TFF Celebrity

Registered: 12/08/08
Posts: 5265
Loc: Boerne, Texas
I know this motor will be a fuel hog, but what kind of comparison would it be against an old vmax 150 ox66? Half as many miles per gallon? 1 mile per gallon, 2mpg?

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#11833609 - 09/17/16 07:54 AM Re: Need some info about hpdi 300's [Re: grout-scout]
Jaret Latta Offline
TFF Celebrity

Registered: 01/06/07
Posts: 5786
Loc: Austin, Tx/Nacogdoches, Tx
The ox66 is a gas hog compared to direct injection but imo the best motor Yamaha made

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