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Visually, the TZR is a spitting image of John
Kocinski's 1990 world-championship-winning works Yamaha YZR250, save for its
lights, turnsignals, passenger perch and lack of sponsorship decals. In actual
ancestry, the TZR is a close..
Honda NSR 250R
Liquid cooled, 90°V-twin cylinder, two stroke, reed valve
Four stroke, transverse four
cylinder, DOHC 4 valves per cylinder
Yamaha RZ 250R
Liquid cooled, two stroke, parallel twin cylinder
Bore x Stroke