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YAMAHA TZR250/SP
It adopted an inverted front fork on its new delta box frame. The internal parts of the engine were changed, and its power performance was drastically upgraded. -
YAMAHA TZR250R
TZ250, the commercially sold racer model, adopted a V twin engine when it underwent a full model change. TZR also added a version that mounted a V twin engine to its line. -
YAMAHA TZR250R/RS/SP
This model was equipped with a TM28SS carburetor that controlled the air-fuel ratio by computer, and a digital ignition system. Type RS was its upper grade model. -
KAWASAKI Z1000 MkII
The bore of the Z1engine was enlarged by 4mm. It was made into a 1015cc engine and mounted on this 1979 MK-II Z1000. The design of the bike had been renewed. -
YAMAHA TZR250RS/SP
The sales of type SP which had an exclusive cylinder, frame, and a front/rear suspension with a damping force regulating mechanism was limited. -
YAMAHA TZR250SPR
Models like SP or RS were consolidated into this SRP. The mid-speed torque of the engine was upgraded by having the triple YPVS and a new carburetor. It adopted a close-ratio transmission. -
YAMAHA FZ750
The GENESIS engine which had five valves (three for the inlet and two for the outlet), was tilted frontward for 45 degrees and mounted on the highly rigid square pipe steel frame. -
HONDA VT250F
It underwent its second full model change. It aimed to improve its ventilation efficiency and to reduce its friction resistance. It adopted a newly designed light and a highly rigid frame. -
YAMAHA CHAPPY
Though it was the smallest Yamaha model, it traveled in a sharp manner with its thick torque focusing on its low rpm range. The 80cc version comes in single seat specification only. -
SUZUKI GSX-R750
The initial R750 was the first commercially sold bike to adopt an oil-cooled engine and its original SACS. The oil-cooled engine was light and compact compared to the water-cooled type.