Verfasst am : Fr, 5. Sep 2008, 17:15 Titel: KTM LIGHT UND VIEL LEISTUNG ,ICH HAB DIE LÖSUNG
1981 KTM 495
This was the first model year for the Great White. This was also the year that Dirtbike magazine had it flat out at 123.75mph (200km/h) at the El Mirage dry lake.
The 1981 model is known to be the fastest of them all. It didn't have a reed valve intake. A very long intake manifold and a small exhaust volume contributing to the overall power output at high rpm. Due to this setup the engine was capable to overrev without loosing to much power. Beside it was the lightest 495 ever made, this was the reason why this bike could reach this enormous top speed. It was not the strongest 495. One year later KTM added some ponies, but at lower rpm. The head had the twin spark plug. The idea was to get a more complete combustion despite the huge volume. The compression was 14:1.The front fork was a ø38mm conventional Marzocchi unit. The rear shocks was Öhlins or WP piggybacks except the US model that was equipped with FOX air shocks. It had the typical rear fender with number plates. Drum brakes both front and rear. This bike is very rare and the twin shock setup makes it qualified for certain vintage classes and therefore it holds a high value.[color=black][size=18][color=black][color=black][color=black][color=black] [color=black]
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Beschreibung:
1981 Specifications
Bore and stroke 92.25 x 74mm
Engine type Two stroke, air cooled
Carburator ø40mm Bing, PowerJet
Power max. 53 HP @ 7000 rpm
Gearbox 4 speed (5 optional)
Clutch Wet sintered, 9 plates
Ignition Motoplat
Weight 229 pounds, (104kg)