When did the Yamaha XJ 750 Seca come out?
It may be the most interesting motorcycle of the year. The DOHC, two-valves-per-cylinder, plain-bearing engine is derived from the XJ650 Maxim powerplant introduced in 1980. The Seca 750 displaces 748cc, with a bore and stroke of 65 by 56.4mm.
What kind of cylinder head does a Yamaha Seca 750 have?
And the 750 is narrow, 18 in. from crankshaft end cover to end cover. Like the Seca 550, the Seca 750 has a Yamaha Induction Control System (YICS) cylinder head. (YICS was explained in detail in the April, 1981 CW.) Basically, YICS consists of small, auxiliary sub-intake ports connected by a passageway in the head.
Where can I buy vintage Yamaha XS650 parts?
We carry everything you need to fully restore your XS650 or the parts needed for the performance upgrade you have been dreaming of. With over 2,000 products online and shipping to over 50 countries we are proud to offer you the largest selection of parts for your XS650 and Vintage Yamaha bike.
What was the top speed of a Yamaha XJ650?
Top Speed: 125 mph. ¼ Mile Time: 12.7 seconds at 106 mph. The Yamaha XJ650 was a bitsa made from a Seca chassis with a small turbo and CV carburetors. However, this allowed Yamaha to keep costs down and also made the XJ the most reliable of all Japanese turbo bikes of the era.
Is there a 1982 Yamaha Seca 650 Turbo for sale?
I have my 1982 Yamaha Turbo Seca XJ650LJ for sale. Its in good running and looking condition as the pictures show. If you are not familiar with turbo bikes, back in the early 80’s these bikes were the latest craze, an attempt to get large amounts of horsepower from smaller power plants, like this 650cc.
What was the Yamaha xj650rj Seca 650 like?
1982 Yamaha XJ650RJ Seca 650. It should be added that Yamaha had greatly improved the suspension units on the Turbo, with an air-assisted fork, and shocks with rebound as well as preload adjustments. Had Yamaha dropped the turbo notion and just upgraded the 650’s handling, it might have become a real seller.
What kind of motorcycle did Yamaha have in 1982?
But the world economy looked good, and motorcycles were selling quite well. So for 1982, the U.S. Yamaha dealers had three Secas on the floor, 550, 650 and 750—four, really, as there was also a twin-cylinder Seca 400. 1982 Yamaha XJ650RJ Seca 650 rear tire and muffler.
What was the year of the Yamaha Seca 750?
“For that, you have the Seca 750,” argued the folk in Cypress, California, Yamaha’s U.S. headquarters, referring to a genuinely nice motorcycle that was a touch too conservative for those who wanted to get a knee down in the corners. But the moto-magazines seemed quite irritated at the fact that the Euros had something we did not.