Yamaha XJ750 Seca — Vintage Motorcycles Online

8 Апр 2015 | Author: | Комментарии к записи Yamaha XJ750 Seca — Vintage Motorcycles Online отключены
Yamaha XJ 750 Seca

Yamaha XJ750 Seca

The of Japan’s iconic Big Four in of over 750cc sales, directed its budget towards GP effort, cutting edge RD, and Lots of advertising. A prime of early-80s technology-meets-style mindset, the Seca was fast, durable and well, but never sold in numbers.

In the USA, Yamaha’s network was sparse compared to making far fewer units

Using Cycle World’s 1981 test as a basis, new bike buyer in 1981 was to look. Not only was the Seca 750 for honors atop the 750cc in acceleration and top speed, it was packed enough techno-features to satisfy a MIT Start with a full LCD for monitoring engine and chassis (side stand warning and brake/oil/fuel and battery fluid headlight/taillight and more) anti-dive shaft drive and we’re getting warmed up.

Mechanically based on the XJ 650 Maxim a year before, the Seca 750 an air-cooled, 2v, DOHC inline measuring an actual 748cc. bore and … (65 by 56.4mm) increased and (rather surprising to at the time) the engine was not rubber-mounted. The crank uses the same bearings as the Maxim and engine is identical.

A gear primary sends to the clutch via a low-hung (to minimize width) mainshaft/layshaft/middle gear with cush drive. there, drive is accomplished bevel gears to the driveshaft. changing direction twice reaching the ground, the Seca engine/transmission unit was powerful and generating a claimed 76-HP at rpm.

Cycle World the Seca at 12.34 in the quarter and nearly 120-mph on top. The Classic Mechanics managed in July of 1982.

Like Suzuki, Yamaha trendy abbreviations for engine theirs being YICS for Induction Control System. ports connect via passageways intersect each main port to bolster the air-fuel during the intake cycle. sizes were identical to the 650 version, with more cam and higher lift on the intake

Four 34mm Mikuni CV were fitted and shim/buckets for valve clearance. The Seca a five-speed transmission with wet swoopy alloy spokes in (fr) and an impressively light dry of only 480-lb.

Styling is subjective but in this writer’s Yamahas of this vintage well behind the standard of the Especially Kawasaki’s 1981 Mixing a bit of Maxim in, the semi-sporting 750 sports a very prominent fork, stacked, rectangular handlebar covers, a stepped and a wrap-around treatment for the rear

Looks notwithstanding, the Seca 750 and of the Yamaha fours of this earned remarkable feedback for and performance.

That’s a good because parts, good or NOS, can be a challenge to find. is a virtue when shopping for an four-… Yammie. The good is, once serviced and given care the Seca 750 should well as a retro-rocket that’s very capable and willing.

Prices for running examples are cheap (under $1000 in examples I researched) making the XJ 750 a great choice for the rider looking for something a little Nolan Woodbury

Yamaha XJ 750 Seca
Yamaha XJ 750 Seca

Yamaha Seca

Engine: 749cc four …,

Compression 9.2:1

Induction: 4x 34mm

Max Power: 76 hp @ 9000 rpm

Five-speed with shaft

Front teles.

Yamaha XJ 750 Seca
Yamaha XJ 750 Seca
Yamaha XJ 750 Seca
Yamaha XJ 750 Seca
Yamaha XJ 750 Seca
Yamaha XJ 750 Seca


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