Lot details Registration No: N/A Frame No: 265-000230 Engine No: Not Visible cc: 250
By the end of 1978 it was clear that Yamaha needed to revise the TZ250 if it was to maintain its dominant position in the 250cc class. Consequently for 1979 Yamaha introduced a considerably revised version of their hugely successful TZ250. Typed the "F" the incoming machine adopted a new, lighter monoshock frame partnered by an alloy box section cantilever swinging arm and three way adjustable front forks. The new frame housed a revised version of Yamaha's illustrious liquid cooled two-stroke twin, now equipped with a new exhaust system and connecting rods. New, more aerodynamically efficient bodywork completed the overhaul. The following season saw the introduction of what for many is the ultimate TZ250, the "G", which built on the success of the "F". Few modifications were made and those that were undertaken were largely in the interests of improving the machine's already excellent reliability, possibly because the factory was concentrating its efforts on the 1981 season machine, typed the "H". This model was the subject of a comprehensive redesign with the engine adopting separate cylinders (not to mention revised bore x stroke dimensions of 56 x 50 mm), mechanical power-valves and a revised lower and lighter frame. The 1982 "J" model received only detail alterations. However, for 1983 the "K" series adopted new cylinder heads, carburettors, another revision to the frame and suspension, improved exhausts and a smaller clutch protected by a magnesium case.
This example of a "K" series machine dating from 1983 appears to be in "good original condition overall".
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