Jawa 640 Chopper (1994)

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The Jawa 644 Chopper is a motorcycle model from 1994, with a two-stroke, 343.4cc parallel twin engine that is air-cooled and has a Jikov 28-29 CE horizontal carburetor. The ignition is a Magneto VAPE A67 contactless system and it has a 12V, 6Ah battery with a kick start. It produces a maximum power of 18 kW (25 hp) at 5500 rpm and a maximum torque of 33 Nm (25 ft.lb) at 5250 rpm. The transmission is a four-speed system with a multi-disc clutch in oil bath and a chain final drive. The frame is tubular and double, with a closed design, and the suspension consists of a hydraulic telescopic fork with steel spiral springs in the front, and a swingarm with hydraulic telescopic suspension units and spiral springs in the rear. The motorcycle has a front disc brake and a rear drum brake, with hydraulic and mechanical control respectively, and steel wheels with multi-spokes and deepened profiles. The front and rear tires have a size of 90/100-17” and 100/90-18” respectively. The dry weight is 147 kg (322 lbs) and the fuel capacity is 15 L (4.0 US gal).

Technische Daten:

Make Model: Jawa 644 Chopper

Jahr: 1994


Motor: Zweitakt, Parallel-Twin
Hubraum: 343,4 cm³ / 21,0 cu in
Bohrung x Hub: 58 x 65 mm
Verdichtungsverhältnis: 10,2:1
Kühlsystem: Luftgekühlt
Ansaugung: Jikov 28-29 CE horizontaler Vergaser, Schieber Typ
Zündung: Magneto VAPE A67 kontaktlos
Batterie: 12V, 6Ah
Start: Kick
Max Power: 18 kW / 25 hp @ 5500 rpm
Max Torque: 33 Nm / 3.4 kgf-m / 25 ft.lb @ 5250 rpm
Kupplung: Mehrscheiben im Ölbad
Getriebe: 4 Gang
Endantrieb: Kette
Rahmen: Rohr, doppelt, geschlossen

Vordere Federung: Hydraulische Teleskopgabel, Stahlspiralfedern
Hintere Aufhängung: Schwinge, hydraulisch teleskopierbar in Federungseinheiten, Spiralfedern
Hinterradfederweg: 80 mm / 3.1 in
Vordere Bremsen: ~A265 mm Scheibe, hydraulische Steuerung
Hintere Bremsen: ~A165 mm Trommel, mechanische Betätigung
Räder: Stahl, vertieftes Profil, Mehrspeichen
Front Tyre: 90/100-17″
Rear Tyre: 100/90-18″
Dry Weight: 147 kg / 322 lbs
Kraftstoffkapazität: 15 L / 4.0 US gal

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