2005 Kawasaki Zx636 on 2040-motos

Kawasaki Other description

2005 Kawasaki ZX636, And for 2005-just two years after its ground-up redesign-Kawasaki is bringing us what amounts to an all-new ZX-6R on the 20th anniversary of the Ninja 600R, the first of the super-sporty 600cc machines. The little Zixxer has enjoyed a power advantage over the puny 600s due to its larger displacement, and that lead stretches further with the 2005 model. Kawasaki has totally redesigned the 636cc mill for more power everywhere. Both the intake and exhaust valves gain one extra millimeter in size for more flow through the new cylinder head, while revised cam profiles aid the lower-end and midrange power. Sounds like a fatter powerband overall, and that's the way it feels in practice. It has a very linear powerband for a 600, making it almost seem slower than it actually is. Helping both ends of the rev range is an exhaust valve, the first to be fitted to a middleweight sportbike. Located in the underseat muffler, the valve is shut at lower rpm for some added backpressure that boosts torque, and then opens up at higher rpm, taking its cues from engine speed and throttle position, for a less obstructed flow at high rpm.