Factory Yamaha List
1974 Yamaha OW13
- Sand cast magnesium upper triple clamp. The lower clamp is billet aluminum.
- The front and rear hubs are both sand cast magnesium. A little over a pound lighter than stock.
- Front forks are works Kayaba. Lower legs are machined out of billet aluminum.
- Sand cast magnesium inner and outer cases..titanium hardware including the kickstarter.
- Aluminum bodied rear shock.
1994 Yamaha OW
Bob Moore’s Championship Yamaha 125
After winning the 1985 West Coast Supercross Championship, Bob Moore was unable to secure a factory ride for the 1986 Season. He was told that Team HB Suzuki in yrs. old!
In his first season, Bob finished inside the top ten. During his race career in Europe, Bob came in second three times in World Championships (1990 and 1991 in the 125 class and in 1992 in the 250 class). Bob never gave up and he eventually won the 125 World Championship in 1994! This is the bike Bob won that championship on!
Bob’s 1986 Suzuki RA125 (His first ride in Europe) and his Championship 1994 Yamaha 125. This says it all!!
1973 Works Yamaha YZ250
Featured here is a 1973 works Yamaha 250. The bike was recovered in Sweden and later restored in the United States.
This bike is believed to have been raced by Hakan Andersson during the first two races of the 1973 GP Season. It was at the first race that Haken was given a “mono shock” bike. That bike can be seen at: www.mxworksbike.com
The works motors for 1973 used an all new crank case design made from sand cast magnesium and featured a new style clutch actuating arm that went through the top of the cases. The front and rear wheels are sand cast magnesium as is upper triple clamp. The lower clamp is machined aluminum and the fasteners are titanium. The fuel tank is a hand formed aluminum high capacity tank. The rear “thermal flow” shocks, still under development, were sand cast in magnesium. The front forks are hand made except for the sliders which are cast aluminum. The fork legs are knurled where they make contact with the triple clamps. Most of the fasteners used are titanium.
The top triple clamp is sand cast magnesium and the bottom, machined aluminum. The forks are machined between
the top and lower triple clams and knurled at the lower clamp for better grip. The “Thermal Flow” rear shocks were still under development. The lower bodies were sand cast in magnesium.
The 1973 works YZ featured the new style clutch actuating arm. It improved the pull and feel of the clutch.
This bike was shipped to the United States from Sweden where it was eventually restored. It was fairly complete but in rough condition. The high capacity aluminum fuel tank was hammered and required a great deal of work to restore.
1980 Yamaha OW40
Ex Neil Hudson Ride
This bike is one of the 2 brought in by Mitsui Yamaha UK for Neil Hudson. Neil rode the bike the beginning of that year in some pre season international races. Neil was on contract to ride for Maico. The owner is currently in the process of tracking down the remaining parts that belong on the bike.