Per the brochure on the Grady White website, the maximum horsepower rating for the OP's hull is only 450 hp, which would be a max of twin 225's. Whether or not they want to go with more than that is up to them, though I personally wouldn't go with more than the manufacturers maximum horsepower rating. Just my personal opinion, of course.Depending on what you use the boat for I would go with Yamaha 250’s if you can. Anybody have a comparison in mpg between those and the merc 200? I get 1.8-2.0 with Yamaha 3.3 250’s on an 282 and haven’t heard of anything better than that. I have another boat with a merc 150 proxs and a small whaler with a merc 90 and would prefer the Yamahas. Less vibration, quieter. That said I think at this point all brands are reliable. Just don’t underpower yourself.
You do have a reason to believe there is rot in the transom.......That boat is a quarter of a century old. The transom was cored with wood and the Grady White methods of construction did not include isolating the core from the penetrations for hardware attachments. When you remove your engines, use an icepick or thin screwdriver to probe into the core at a thin angle in all the engine mounting holes. If it is soft or mushy black, you have your answer. If you want to know before you start removing the motors, You can remove the garboard plug and do the same or use a 1/4 inch bit and drill random holes through the transom skin into the core, starting near the garboard plug. If all is solid you can refill the holes with epoxy using a turkey injector.I have no reason to believe there is rot in the transom
I pulled the trigger this morning on a pair of Suzuki 200's and luckily was able to get all the digital stuff. I'm sure it's going to be much smoother than the 225 Yamis that are being replaced. Last day of rebates didn't hurt either.If I was in the OP's shoes and spending the money for brand new outboards, I think I'd probably go with twin Suzuki 200's, though I'd definitely upgrade to the optional digital controls compared to mechanical. The Suzuki 200's are about 530 lbs a piece, so not too much more than your current setup and maybe an extra 60 lbs total at the most? Suzuki's also come standard with a 5 year warranty and will likely be the cheapest in terms of pricing.
Suzuki Outboard Motor I DF200A In-Line 4 I Suzuki Marine
Suzuki Marine 200 hp outboard motor. In-line 4-stroke. Torque and power with a 3-star Ultra-Low Emission rating. See the DF200A specs. Find a dealer.www.suzukimarine.com
Thanks. Hopefully in the next year I'll get my hard top back on and I will be 100%. I just need to lift my garage 3'!Thanks, I will definitely look into those. Looks like a great setup you have there.
BTW, my Islander started out in Ohio for her first 12 years. I like to think it benefited greatly from running in freshwater.Thanks again, I might have to wait a bit on another set of props, spent a lot of money on boats lately and hopefully the new set of props I recently purchased for other motors are going to be ok on the Suzukis, fingers crossed.