2004 F225s on Marlin?

[downtown]

I am being offered pair of F225s with 400 -500 hrs for my 1992 Marlin. Price is okay installed by dealer. Haven't asked about guarantee yet.

My question is that I have heard that there is a big difference in the power of the 225s as opposed to the F250s. These engines are coming off a 330, which is considerably heavier than a Marlin.

I have been told to hold out for 250s.

I would like to get feedback from F225 owners as to whether they are happy running these motors with a full load. Are they that much different than the 250s? Do you have to push the rpms to get to 28-30 mph?

I know there are corrosion issues with these and I will have them remove lower units and scope.

Thanks

 

[chub2000]

the 250s make the extra 25hp at the very top of the torque curve. that means that you will only feel the extra hp at wide open throttle. how often do you run your boat at wide open throttle ?? the 225's are also more fuel efficient.

 

[Capt. Ed]

F250's have variable camshaft timing which adds substantial torque (power and acceleration) at 2000-3000 rpms. This helps get on plane much faster and offers more mid range acceleration. There is a big difference in performance between the two engines.

However, F225's are more than adequate for a Marlin 30 and do get better mileage. I owned a 2004 Marlin with F225's and was very pleased with overall performance.

Good luck with decision.

 

[Daman858]

I would suggest that you Google "Yamaha F225 exhaust corrosion" and read up on the issue before you commit. It would be far better for you to be aware of the issue than to find out after you purchase the motors. Here is forum post with photos. http://www.thehulltruth.com/boating-for ... hread.html

I have no personal knowledge of this issue but it has been around for several years and does not seem to be a myth.

 

[dgreen1069]

I would like to get feedback from F225 owners as to whether they are happy running these motors with a full load. Are they that much different than the 250s? Do you have to push the rpms to get to 28-30 mph?

What do you consider as having to push the RPM's? I have 2000 OX66 250's on my Marlin, and I have to run them at about 4,600-4,800 to get that kind of speed. At that RPM I am getting 1-1.2 mpg depending on the conditions.

 

[Lainie J]

I have a 1997 Marlin with 02 F225's. I normally run it at 4K and get 22 -23kts at 16 - 17 GPH depending upon weight. No issue getting up on plane, jumps right up. I have a little over 500 hours and the engines have run perfectly since installed in 2002. You will need to run them closer to 4,500 to get the higher cruise speed you are looking for. Most people do run at the higher RPM but I choose to run a little slower and get the better GPH. If all checks out you will love the motors. Good luck!

 

[HDGWJOE]

The F225's should be fine. I have a friend with 2004 F225's on a 1989 Marlin. I have F250's on mine and when I cruise with him at about 4200rpms he stays close at the same rpm's. On a long cruise (1.5-2hrs) he will start to fall back but that could be the difference in props. To me it's not enough difference to worry about it.