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I remember the first
time I heard talk of a big V-6 four-stroke Yamaha. It was roughly a decade
ago, about the time a competing manufacturer was taking the lead in four-stroke
technology with a couple of new 35- and 45-hp models with virtues that
remain characteristic of four-strokers today: environmental cleanliness,
smoothness, quiet operation, and excellent fuel economy. Of course, due
to the allure of such traits, all manner of early-‘90s folk were
ready to jump on the four-stroke bandwagon and stay there, provided manufacturers
kept their products within a reasonable horsepower range, which then seemed
to top out around 100 hp.
But a really big four-stroke,
one like the behemoth Yamaha was supposedly working on? Commentators were
convinced that the successful development of such an outboard was about
as likely as that of a Hell-resistant snowball. Certainly, clean, green
four-stroke engines were fine for automobiles and small outboards where
weight and size weren’t critical, but the technology was way too
bulky and hefty to fit a V-6 outboard envelope practically.
A few more years of
R&D did little to improve the prognosis. In 1994 Yamaha invited a
few marine journalists to visit Japan to check out the development of
several new engine products, one of them being a V-6 four-stroke. The
collective opinion afterwards, with the vision of what had seemed like
a very large prototype still fresh in the reporters’ minds, was just
a tad less than upbeat. Indeed, perhaps because Yamaha was concurrently
developing engines for several automobile manufacturers, the metaphors
the media types used to describe the status of the outboard project followed
suit. The worst of the lot, if memory serves me correctly, humorously
compared the prototype size-wise, weight-wise, and oomph-wise to a Volkswagen
Beetle.
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