Kawasaki ZR750K – CycleChaos

6 Jan 2015 | Author: | Comments Off on Kawasaki ZR750K – CycleChaos
Kawasaki ZR 7

Kawasaki ZR750K

The Kawasaki ZR750K is a motorcycle produced by Kawasaki from 2005 to 2006.

ZR750 K1/K6F Z750S

Kawasaki Z750

Z750 was presented in 2004, after Z1000 great success in 2003. Kawasaki played simple, they used same engine block, cheaper front suspension and much simplier exhaust making a cut-down version of Z1000. Apperance was a bit less aggresive and eye catching the fun factor stayed equally high and the price was significatly lower.

Z750 easily manages to defeat his competitors (Yamaha FZ6 and Fazer, Suzuki GSR600, Bandit 650, SV650(s), Honda CB600(France)) in most head-to-head comparisons thanks to great engine. Thanks to 100-150 ccm of extra displacement Kawasaki was able to make Z750’s engine much more torque and responsive in low and mid engine speeds compared to other budget middleweights, especially Yamaha’s which are equally fast but demand much more revs.

Naked and half faired sport bikes are much more about commuting in city and cruising on short journeys than speeding and revving the engine in red so Kawasaki made a real good job with Z750’s engine. Bigger engine costs more so Kawasaki had to go with the steel frame, while all other manufacturers use aluminum which made Z750 heaviest in class. This is only real con for Z750, but few extra kilos was easily canceled with more power and torque.

By many, this is cheating because for years this class was populated with 600-650ccm bikes, but consumers really don’t care, they get faster and more exciting bike for same money. Aggresive streetfighters styling makes Z750 very attractive and eye catching, which is another category which makes naked bike great.

In 2005, Kawasaki presented Z750S version which is more tourer, and less streetfighter. This version has one big seat instead of two part seat on Z750, bigger fairing for wind protection, doesn’t have rear tire hugger like Z750 and uses analog speedometer and tachograph instead great looking digital instruments taken from ZX-R models on Z750 and Z1000

Technical specifications (ZR750-J1)

Engine Type Liquid-cooled, 4-stroke In-Line Four

Displacement 748 cm3

Bore and Stroke 68.4 x 50.9 mm

Compression ratio 11.3:1

Valve system DOHC. 16 valves

Fuel system Fuel injection: Ø 34 mm x 4 (Keihin)

Ignition Digital

Starting Electric

Lubrication Forced lubrication, wet sump

Transmission 6-speed, return

Maximum power 106-110 PS (depending on market)

Maximum torque 72-75Nm (7.4-7.6 kgf/m)

Tires 120/70ZR17M/C (58W) 180/55ZR17M/C (73W)

Front suspension 41 mm telescopic fork (non-adjustable

Rear suspension Bottom-Link Uni-Trak (adjustable preload and rebound)

Front Brakes Dual semi-floating 300 mm discs with dual twin-piston calliper

Rear brakes Single 220 mm disc with Single-piston calliper

Kawasaki ZR 7

Overall length/width/height 2,080 mm/780 mm/1,040 mm

Wheelbase 1,425 mm

Ground clearance 165 mm

Seat height 815 mm

Dry weight 195 kg

Fuel capacity 18 litres

Maximum Speed est. 240 km/h

Available colors Black, Silver, Orange (Black, Silver, Blue – y. 2005, Black, Red, Blue – y. 2004)

A standard Z750 will make almost 100 hp at the rear wheels, and swapping the muffler for an easier-breathing item will yield slightly over that figure. The power is delivered in a seamless stream with no large dips or troughs but it still manages to deliver a furious top end rush. The fuel injection is a sophisticated dual-butterfly system usually found on more expensive bikes.

One butterfly is controlled by the rider while the other is controlled by the EFI. It delivers smooth and usable power from just over tick-over to the 11,500 rpm redline .

The brakes are quite basic, two pot floating units. They lack feel with the standard brake lines but still give a surprising amount of power.

Handling wise the Z750 is much more than the sum of its parts. The wide bars allow the rider to flick between corners with ease and the bike handles lumps and bumps in the road better than any sports bike. The pegs will touch down quite easily but this is more due to the bike’s ability than their low placement.

The small screen doesn’t offer much protection at high speeds, especially at its 245 km/h indicated top speed! The riding position is very comfortable with a classic naked bike style – sit up and beg. The pillion position is less accommodating with a small peg-to-seat height and no real grab-handle.

The 18 liter tank allows for a much larger than average cruising range.

Kawasaki ZR 7
Kawasaki ZR 7
Kawasaki ZR 7
Kawasaki ZR 7

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