Ads
related to: 1984 yz 250 used parts
Search results
Results From The WOW.Com Content Network
The original YZ250 of 1974 used an air-cooled 250cc two-stroke engine of 70 mm bore and a 64 mm stroke, which was improved semi-annually. The air-cooled motor was replaced in 1982 with a 249 cc liquid-cooled two-stroke reed-valved engine with a mechanical, rather than servo-driven, YPVS exhaust valve for a wider spread of power.
YDS-3 (1964) 246 cc, two-stroke, parallel-twin, it used the world's first oil injection lubrication system in a 2-stroke engine. [2] DT-1 (1968) Yamaha's first true off-road motorcycle. [1] XS-1 (1970) Yamaha's first four-stroke engine motorcycle (650 cc twin). [3] YZ Monocross (1975) First production motocross bike with a single rear shock. [3]
It was fitted to all of the later models of the RZ/RD two-stroke road bikes (125, 250, 350 and 500 cc), the TZR range. It was also added to the DT(125lc 2/3) range after 1984 (but was locked closed to comply with UK learner regulations until the (R) in 1988-04 which had a fully functional YPVS valve) the DT125R has a better design of engine ...
There were several models, the 1985 RZ350F, 1986-92 RZ350F2,N,NF, and the 1992-5 RZ350RR which was produced in Brazil. The picture shown to the right is a model with an aftermarket "Expansion Chamber" which was a higher flowing, high-performance exhaust system, devoid of the catalytic converter and other exhaust pollution control items.
Yamaha was the first to build a production monoshock motocross bike (1975 for 250 and 400, 1976 for 125) and one of the first to have a water-cooled motocross production bike (1977 in works bikes, 1981 in off-the-shelf bikes). Yamaha's first Motocross competition four-stroke bike, the YZ400F, won the 1998 USA outdoor national Championship with ...
LYNN, Massachusetts ― Mark Callahan has voted Democratic in nearly every presidential election he can remember. Until this year. Callahan, 67, cast his ballot for President-elect Donald Trump ...