Kawasaki KR 250/350

Kawasaki
Kawasaki KR 250
Kawasaki
Manufacturer	Kawasaki
Production period	1984 to 1987
class	Racing motorcycle
Motor data
Two-cylinder two - stroke engine

transmission	Foot-shifted six-speed gearbox, dry multi-plate clutch
drive	Chain drive with open roller chain
Brakes	Front: single disc brake Rear: single disc brake

The Kawasaki KR 250 and Kawasaki KR 350 were racing motorcycles from the Japanese manufacturer Kawasaki .

history

KR 250 without casing

Toni Mang succeeded in 1981 in winning the world championship title in the classes up to 250 and up to 350 cm³ of the motorcycle world championship with the KR 250 and the KR 350. In the following year he became the all-time world champion in the 350 cm³ class with a KR 350 - the class was no longer advertised after the 1983 season.

technology

engine

Motor of the KR 250

The engine was a water-cooled two-cylinder tandem engine with rotary valve control. Each cylinder had its own crankshaft, which were coupled to one another in opposite directions via spur gear teeth. The two 34-millimeter Mikuni round slide carburetors were mounted on the left side of the housing. On the right crankshaft stub of the front cylinder sat the magneto ignition, on that of the rear the water pump. The multi-disc dry clutch sits on the right of the transmission input shaft, the secondary chain on the left.

landing gear

The double loop frame was welded from steel; the telescopic fork at the front and the two -sided swing arm at the rear led from PVM cast wheels. The rear suspension had a spring strut with a compensating tank, which was linked by a rocker. Due to the low weight of the vehicle, a single-disc brake system on the front and rear wheel was sufficient.

Technical specifications

Parameter	KR 350	KR 250
drilling	64 mm	54 mm
Hub	54 mm	54 mm
Displacement	349 cc	249 cc
power	78 hp (57 kW ) at 11,800 min ^-1	67 hp (49 kW )
Top speed	255 km / h	240 km / h
Empty weight	101.7 kg

Received vehicles

An original KR 350 from Toni Mang's 1982 racing season is on display in the traffic center of the Deutsches Museum in Munich.

literature

Hans Joachim Nowitzki: Green and toxic . Toni Mang's factory Kawasaki. In: motorcycle . No. 7 . Motor Presse Stuttgart , Stuttgart 1978, p. 134–135 ( Online [PDF; 427 kB ; accessed on December 14, 2014]).

Web links

Commons : KR350 - Collection of Pictures, Videos and Audio Files

Alan Cathcart: Kawasaki KR 350 review. (No longer available online.) Motorcycle Trader, March 22, 2006, archived from the original on December 14, 2014 ; accessed on February 28, 2017 (English, via George Beales KR 350 (ex- Jean-François Baldé )): "Still, riding the Kawasaki was a real blast from the past in one way."

Individual evidence

↑ ^a ^b ^c Michael Pfeiffer: Toni Mangs master bike: The Kawasaki KR 250/350. In: Finale. Motorcycle , August 5, 2010, accessed February 28, 2017 .
↑ Kawasaki KR 350. In: Collections. Deutsches Museum , accessed on February 28, 2016 : "With this machine, the five-time motorcycle world champion Toni Mang won a title in the 350 cubic centimeter class in 1981/82."

[MO-1] Michael Pfeiffer: Toni Mangs master bike: The Kawasaki KR 250/350. In: Finale. Motorcycle , August 5, 2010, accessed February 28, 2017 .

[DM-2] Kawasaki KR 350. In: Collections. Deutsches Museum , accessed on February 28, 2016 : "With this machine, the five-time motorcycle world champion Toni Mang won a title in the 350 cubic centimeter class in 1981/82."