115 hp 4-stk: Yamaha or Merc? Same thing?

[p_maher]

Working out numbers on a new boat and asked dealer to price out boat with 115 4stk Yamaha. He's pushing the Merc 115. He says they are the same. Dry weight not the same, the Yamaha is 32 lbs heavier. I've heard they are the same powerhead. True? One any<br />"better" than the other.<br /><br />Thanks,<br />Pat

 

[JB]

Re: 115 hp 4-stk: Yamaha or Merc? Same thing?

Howdy, Pat. Yamaha makes a big deal out of being the lightest in each power class. Their 115 EFI weighs 398 lb.<br /><br />If the Merc is a 1741 cc, sixteen valve inline four it could theoretically be the same power head. If it is, and weighs 366 lb, it must not be fuel injected.<br /><br />I had heard, second hand, a claim by a Merc seller that their 4 stroke 90 is the same engine as the Yammy 100. Neither is EFI.<br /><br />I could be wrong, but I don't believe either claim is accurate. <br /><br />I just bought a Suzuki DF70 EFI and I can tell you the EFI is worth many extra bux on any 4 stroke for the same reasons that you can't buy carbureted cars any more.<br /><br />I would put the Yammy 115 EFI and the Suzi 115 EFI well ahead of any other 4 strokes in that class. If the Merc is truly a match I would be surprized. <br /><br />I've been wrong before. . . .let's see, was that '53 or '55? . . . . um, well, check the details. I think you're getting smoked.<br /><br />Good luck.<br />JB

 

[p_maher]

Re: 115 hp 4-stk: Yamaha or Merc? Same thing?

J.B.,<br />Thanks for the info. According to the Feb. 2001 Powerboat Reports, the Yam and Merc *do* share the powerhead. Merc adds it's own lower unit. <br />So, I'm thinking, if same warranty, I can live with the Merc.<br /><br />Pat

 

[mbb]

Re: 115 hp 4-stk: Yamaha or Merc? Same thing?

Yamaha makes the powerhead for mercury, I dont know that its exactly the same though.<br /><br />Honda lower units are made by merc, and internal parts are identical to certain merc lower units and mucho cheaper from merc dealer.

 

[corby]

Re: 115 hp 4-stk: Yamaha or Merc? Same thing?

I got your reply...thanks. Just wondering if your dealer can get you the merc 115 4 stroke? I'm being told they can't get them until mid July...Also found a dealer selling the yammy and merc for the same price...and they have the yammy in stock. I'm still undecided.

 

[p_maher]

Re: 115 hp 4-stk: Yamaha or Merc? Same thing?

Corby,<br />Yes my dealer must have had a 115 in stock.<br />Picking it up this Saturday!!<br /><br />Pat