How much does a Yamaha XJ 750 Seca weigh?
Yamaha XJ 750 Seca Model Yamaha XJ 750 Seca Wet Weight 241 kg / 531.3 lbs Fuel Capacity 19 Litres / 4.7 US gal Standing ΒΌ Mile 12.3 sec / 106.6 mph Top Speed 204.3 km/h / 127 mph
Where are the bearing caps on a Yamaha XJ 750 Seca?
Each cover bolt is shouldered, and bottoms in threaded steel inserts fitted into the bolt holes located in the head casting and the cam caps. Each cam is held by three bearing caps with what appears to be a fourth cap (on each cam, located next to the cam sprocket) actually serving only as a fastening point for the cam cover.
What kind of engine does a Yamaha XJ 750 have?
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. Besides having a larger bore and longer stroke than the 63 x 52.4mm, 653cc Maxim engine, the Seca engine isn’t rubber-mounted.
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.
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.
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.
Each cover bolt is shouldered, and bottoms in threaded steel inserts fitted into the bolt holes located in the head casting and the cam caps. Each cam is held by three bearing caps with what appears to be a fourth cap (on each cam, located next to the cam sprocket) actually serving only as a fastening point for the cam cover.
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. Besides having a larger bore and longer stroke than the 63 x 52.4mm, 653cc Maxim engine, the Seca engine isn’t rubber-mounted.