posted 09-17-2002 06:37 PM ET (US)
Here is some information I just picked up from a visit with a service manager at my engine dealer, who sells both Yamaha and Mercury.Most of us know these engines are a joint venture between the two, and the engines are basically identical except for a few components, and the mid & lower sections. I had been under the impression that Yamaha built part of the engine, and Mercury built part, and then each finished them off in their own package.
I thought this was amusing. Evidently, each company has a plant that manufactures the whole, entire powerhead. The ones made at Yamaha are painted green, and the ones made at Mercury are (what else?) painted black. And they each use either one, based on tight availability and popularity, for either brand engine! That is, he has seen Yamaha 80-115's come in with black painted powerheads, meaning they were made by Mercury, and also Mercury's with green painted powerheads. So if you have one of these mis-matched engine paint jobs, you now know who made what! He also said that Mercury's parts availability, and overnight delivery system, for the same interchangeable parts, is MUCH better than Yamaha's.
He also said that Mercury and Yamaha are cooperating so that they can develop better products faster, and keep Honda, Suzuki and Bombardier, all larger and well financed companies, in the sales background.
So far so good, evidently.