Re-Power yamaha 225 to 300 On a 2320

derooster63

Almost A Member
Aug 12, 2009
183
24
Bakersfield Ca
Name
Byron DeRoos
Boat
2014 Parker 2320
Any idea on the cost of new Yamaha 300. Not digital so I can keep the same controls and such. My 225 sucks in west coast waters. My 225 is in perfect condition with 1K hours and adding ... Its a 2014 so no exhaust issues and full service records what is it worth? anyone done this? did you sell the motor on your own? or just let say west coast marine consign it?

thanks
 
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Big_Tuna_

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Aug 3, 2017
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Bigtuna
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Parker 2310
back in March I got a quote for $29,674 for a mechanically controlled Yamaha F300XCA installed on my Parker 23 by west coast marine in SD. Labor was 1200. The rest was tax & parts. The trade in value of my F250 motor would be determined after inspection.
 
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Big_Tuna_

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Aug 3, 2017
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I debated and then when I finally called them back they were out of stock. So I haven't done it.

I have 1820 hours on my F250TXRD now, I've put almost 300 hours on it since I bought it last summer and really no problems with the motor, knock on wood. I think I will keep piling on the hours for another year.

Are you upgrading the F225 for lack of power?
 
derooster63
derooster63
yes Lack of power. I put permatrim, 4 blade and raised it up one notch with no significant change.
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djam

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  • Jun 2, 2008
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    Dave
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    Check the max HP for your boat before you get too far. Some boats have a max of 250. I was told by my agent if you hang a motor bigger the insurance can deny a claim. Don’t know that is a fact, but check first.
     
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    45king

    Jig slinger/arrow flinger
    May 29, 2005
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    I’m buddies with a boat mechanic and he told me something that had me thinking. Not sure if it’s completely true but this man has been solid to me for decades.
    He told me a Yamaha 300 will require 91 octane to run at peak performance. If u pump anything less then the computer will retard it back down to a 250. I was shocked when I heard this.

    This was brought up because my brother is considering repowering from yami 250’s to 300’s.

    Good luck
    45king
     
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    Big_Tuna_

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    I’m buddies with a boat mechanic and he told me something that had me thinking. Not sure if it’s completely true but this man has been solid to me for decades.
    He told me a Yamaha 300 will require 91 octane to run at peak performance. If u pump anything less then the computer will retard it back down to a 250. I was shocked when I heard this.

    This was brought up because my brother is considering repowering from yami 250’s to 300’s.

    Good luck
    45king
    Hmm interesting seems he is close, it says 89 in the 2020 manual off the Yamaha website. Drop in 50hp though?

    Recommended fuel:
    Mid-grade unleaded gasoline (For
    North America), Premium unleaded
    gasoline (F300A, LF300A)
    Regular unleaded gasoline (F225B,
    F250B, LF225B, LF250B)

    Min. pump octane number (PON):
    86 (F225B, F250B, LF225B, LF250B)
    89 (F300A, LF300A)
    Min. research octane number (RON):
    90 (F225B, F250B, LF225B, LF250B)
    94 (F300A, LF300A)
     
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    TailWhip

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    Feb 5, 2016
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    TailWhip
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    2007 Parker 2320
    I have a 2001 2320 with the diesel so I don't have the same issues. But I did own a 2008 with the 2008 F250 on a bracket, with a 4 blade SS prop and a Permatrim and the boat frankly hauled ass with more than enough torque out of the hole and or in a following sea. I ran cruised consistently 25-28 knotts and got about 1.7 - 2.0 mpg on 87 octane. I see everyone moving to 300s on repowers but always questioned why do so if a 250 is less expensive, runs 87 octane and running 87 octane in a 300 supposedly retards the motor to a 250? Plus, I thought the 300s have the oil issue. I was always led to believe that behind the 150, the 250 series is the best motor Yamaha has ever made? What do you gain with a 300 on a 2320 specifically that you don't get with a 250. Just curious?
     
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    derooster63

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    Aug 12, 2009
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    Byron DeRoos
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    2014 Parker 2320
    I believe the 300 is actually lighter than the 250. This is a big plus for me as I have to shift wheight forward.
    Truth is, I only know the 225 and in rougher seas it sucks . Following I do great but not going out, its a battle to keep 23 mph. no power when it hits a wave.
    The cost difference between a 250 and a 300 is not that much more ( to me)
    89 is what 15 cents more a gallon .. 22 bucks a tank I can live with that.
    Yes Stocks are low, and I will wait, Just want to start saving now.
     
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    Big_Tuna_

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    Aug 3, 2017
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    According the Yamaha website the new Yamaha 225, 250, and 300 all weigh the same, that's interesting
     
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    nefarious235

    I Post A Lot But I Can't Edit This
    Aug 1, 2008
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    I repowered my 23' center con from a F250 to a F300 after 7000 hours on my F250 and it blew up. It cost right at 30 grand.., Was analog went digital with all new gauges and binnicle. Love it. Totally different boat response, it's a sports car now. The F300 is 90 pounds lighter than the old F250, Has to do with the size of the blocks.
     
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    Big_Tuna_

    Member
    Aug 3, 2017
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    Bigtuna
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    I repowered my 23' center con from a F250 to a F300 after 7000 hours on my F250 and it blew up. It cost right at 30 grand.., Was analog went digital with all new gauges and binnicle. Love it. Totally different boat response, it's a sports car now. The F300 is 90 pounds lighter than the old F250, Has to do with the size of the blocks.
    Oh nice, good to know the f300 is lighter than the old f250s, I was comparing new to new.

    Where did you get the repower done? Was this recently?

    And 7000 hours? That is awesome.
     
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    nefarious235

    I Post A Lot But I Can't Edit This
    Aug 1, 2008
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    Oh nice, good to know the f300 is lighter than the old f250s, I was comparing new to new.

    Where did you get the repower done? Was this recently?

    And 7000 hours? That is awesome.
    The older 3.4 liter F250 motor is like 30kg heavier than the new 4.2 liter F300. Not logical but true. My thought was WIN WIN. Totally different skiff. 🚤
     
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    Southocg

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    Nov 27, 2012
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    fsfabco.com
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    Jim
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    Tail Whip
    I have a 2001 2320 with the diesel so I don't have the same issues. But I did own a 2008 with the 2008 F250 on a bracket, with a 4 blade SS prop and a Permatrim and the boat frankly hauled ass with more than enough torque out of the hole and or in a following sea. I ran cruised consistently 25-28 knotts and got about 1.7 - 2.0 mpg on 87 octane. I see everyone moving to 300s on repowers but always questioned why do so if a 250 is less expensive, runs 87 octane and running 87 octane in a 300 supposedly retards the motor to a 250? Plus, I thought the 300s have the oil issue. I was always led to believe that behind the 150, the 250 series is the best motor Yamaha has ever made? What do you gain with a 300 on a 2320 specifically that you don't get with a 250. Just curious?

    A667EA84-4AE9-47CA-9885-791B4B53A506.jpeg
     
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    aguachico

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    Jul 20, 2004
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    Good luck finding a motor. My 2004 f225 needs a new steering assembly. Gonna dump $2k into her this winter to get it ready for '22.

    I heard engines are 10 months to a year out.

    You save time with money, but is it worth it? Maybe you need a new prop?

    Gonna keep that new engine money in the bank.
     
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    thrasher949

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    Nov 18, 2010
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    San Clemente, CA
    Name
    Jeff
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    Parker 23
    Any idea on the cost of new Yamaha 300. Not digital so I can keep the same controls and such. My 225 sucks in west coast waters. My 225 is in perfect condition with 1K hours and adding ... Its a 2014 so no exhaust issues and full service records what is it worth? anyone done this? did you sell the motor on your own? or just let say west coast marine consign it?

    thanks
    Maybe you need the right prop.... I had the same boat/motor.... 15x15 mercury enertia 3 blade is the answer topped out at 37mph, got our of the water much faster cruise 28 near 2mpg. That 19 pitch factory prop was GARBAGE. Hit up Ken at propgods
     
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    derooster63

    Almost A Member
    Aug 12, 2009
    183
    24
    Bakersfield Ca
    Name
    Byron DeRoos
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    2014 Parker 2320
    I put permatrim and a new 4 blade prop and honestly I liked the three blade better. It had more power and mileage didn't change much. In perfect seas, granted the 4 blade rocks but socal is rarely perfect.
     
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