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  Merc Vs. Yamaha 225's

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Author Topic:   Merc Vs. Yamaha 225's
TheWiskey posted 03-18-2001 06:58 PM ET (US)   Profile for TheWiskey   Send Email to TheWiskey  
There are a lot of mechanical diferences between these two V6/2stk engines, the Merc and the Yamaha, 225 hp. I just bought a Dauntless 22 and I must choose the engine know. I will like to heard the recomendations of the board. These is my first boat ever, and the engine is significant expence. I apreciate your guidance thanks.
Peter posted 03-18-2001 07:40 PM ET (US)     Profile for Peter  Send Email to Peter     
I recently repowered a Revenge with a Yamaha 225 Ox 66 EFI. I did so because I have several friends who have had this motor, each for several years. None have had any problems.
dfmcintyre posted 03-18-2001 10:34 PM ET (US)     Profile for dfmcintyre  Send Email to dfmcintyre     
I installed a '99 200hp Yamaha on a 21 Outrage. Like it _alot_. Had been a Merc OB and I/O purchaser until this. No problems so far, very dependable. A close friend was a local Whaler and Yamaha dealer and did many installations, with very little service calls on the Yama.

On the flip side, I'd take a_very_close_ look at the Merc Optimax. What bugs they had (if any) should be worked out by now. I was leaning towards the Opti, but fell into a deal for a new, in the box saltwater series Yama that I couldn't pass up.

Good luck on your decision.

OutrageMan posted 03-19-2001 01:27 PM ET (US)     Profile for OutrageMan  Send Email to OutrageMan     
I am not sure about the 225. However as a testament to Yamaha, I have a 91 250 on my 22 Outrage with Whaler Drive. The engine has nearly 900 hrs on it, is driven @ 4500 rpm for long distances, and has never needed anything but routine maint. This is buy far the toughtest motor I have ever dealt with.
bigz posted 03-19-2001 03:36 PM ET (US)     Profile for bigz    
OM, just a friendly suggestion on the Yam -- might want to have your shop do a quick vacuum and pressure check on the lower unit this Spring --- when you get up in hours doesn't hurt to take a few minor precautions --- better than a full rebuilt if just the seals are starting to go -- Tom

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