posted 06-14-2015 11:05 AM ET (US)
George--Funny you mention Tohatsu. Tohatsu makes a nice small four-cycle outboard engine. They are willing to sell them to both Mercury and Evinrude. Evinrude apparently could not scale down their E-TEC direct-injection technology in an economically practical way for them to manufacture really low-power outboard engines below 15-HP. About two years ago Evinrude entered into an agreement with Tohatsu to buy the nice Tohatsu-designed, Tohatsu-built small four-cycle outboard in the 3.5, 4, 6, 9.8, and 15-HP models. Evinrude now offers those four-cycle engines under the Evinrude brand, with Evinrude dealer support, for their Evinrude loyal customers. I think they took this step just to be able to offer customers an Evinrude-branded engine in the low-power segment, rather than send those customers away to competitors for those engines.
Tohatsu also makes direct-injection two-cycle engines using (what appears to be) the Orbital Combustion Process. Tohatsu calls these engines their TLDI series, for Two stroke Low pressure Direct Injection. These engines cover the horsepower range from 25 to 115-HP. Apparently, Tohatsu, like Evinrude, could not scale-down their two-cycle direct-injection technology to really small horsepower engines.
Tohatsu also developed and received a prestigious award for the first electronic fuel injection four-cycle engine that could be pull-started or rope-started and run without depending on a battery, as I recall.
As a further example of all the interconnected relationships among outboard engine manufacturers, Tohatsu recently entered into an agreement with Honda to buy Honda large horsepower four-cycle outboard engines and market them under the Tohatsu brand. Now you can buy a Tohatsu-made-by-Honda in the 115-HP to 250-HP range.
The summary might be: only Yamaha and Suzuki remain as brands that make all their own engines and don't sell any of their product to other competitors to be sold under the competitors' brands. Both used to sell OEM product to competitors, but I don't think they do now.
Honda and Tohatsu seem content to sell their own brand and to sell some OEM product to competitors for rebranding.
After its ugly and rather public divorce with Yamaha, Mercury got into bed with Tohatsu, but came up with some sort of long-term agreement so they wouldn't get caught with supplier problems as they did when Yamaha stopped selling to them. They explain this to their investors with the nebulous term "joint-venture." Some die-hard Mercury fans have invented all sorts of meanings for this term, imputed all kinds of terms of the agreement, and insist on holding on to these inventions in spite of direct, first-hand accounts given by former and current employees of Tohatsu and the clear statements from Tohatsu itself that completely contradict these invented arrangements of the Mercury fans.
Evinrude makes all its own stuff and doesn't sell it to competitors, except as noted above in the very low-power range for which they buy Tohatsu engines.
Back to the original discussion re Yamaha and Evinrude: both these brands are very big with re-power engine sales. I can see why there could be conflict in a dealer selling both brands as loose engines.