This bike's serious nature shows when you look at the leading axle forks with cooling fins on the lower castings, the aluminum swing arm. hollow axles, hollow brake pivot shafts and generally lean,...

Jan 21, 2024 · When the limited-production Kawasaki KX250 A4 came out in 1978, Kawasaki said it was an honest-to-goodness works motocrosser for expert riders only. They also said the 207-pound bike made 40 horsepower at 6500 rpm.

Oct 12, 2011 · Very good looking bike, my favorite year model of the KX's. So is it really a "Works Bike"? Was this just as you would have bought one in 1978 from the dealer? Revolutionary double-tube Twinwall design makes fatigue failure virtually impossible. 1978 KX 250 A4. This one of 1500 produced worldwide and one of 600 imported to the US. Bike number 1065.

The KX250-A4’s engine has one unique feature: Kawasaki’s patented wire-explo­ sion coating on the cylinder wall. Each unfinished cylinder has its ports plugged, and it’s then fitted on a machine that feeds 15 separate wires through the center of the cylinder. A 16,000-volt current is ap­ plied to the wire, and the wire’s center is

Dec 18, 2020 · Claimed horsepower was 40, and the bike weighed just 206 pounds. It was specifically designed for experts, and it featured the first use of long-travel suspension on a KX as well as the industry’s first use of a Boyesen reed valve.

Find Used Kawasaki Kx 1978 For Sale (with Photos). 1978 Kawasaki KX 250 A4.

1978 Kawasaki KX250 A4 All logos and images are properties of their respective owners and or East Coast Vintage MX. East Coast Vintage is a division of Weaver Motorsports, Inc.

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One of 1717, a legendary 1978 Works Kawasaki KX250-A4 in perfect condition. In 1974, Kawasaki would make its most serious off-road commitment to date with the release of an all-new line of motorcycles designed solely for motocross racing – the KX.

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