Here is another race gem which was found via the TJR website. The Harris F1 is now back on the track where she belongs. The motor is a full works XR69 prepared by the guru himself  Pops Yoshimura  to the same spec as Wes Cooleys Suzuki AMA superbike. We are in the process of gathering more details about the bike and will update the information as we go.  

Technical Specification

Engine             Suzuki XR69 transverse 4 cylinder air cooled four stroke   
Capacity          998cc
Carburetion      33mm Mikuni Smoothbores  
Exhaust          Yoshimura  works        
Gearbox          Yoshimura close ratio
Clutch             Yoshimura light weight
Ignition             Self generating works
Bodywork         Harris
Frame              Harris F1, Reynolds 531 tubing              
Suspension      Front TT2 fully adjustable Marzocchi

                       Rear White power
Brakes             Lockheed 2 pot front callipers and master cylinder
                       Lockheed 2 pot rear callipers and master cylinder  
Tyres/wheels    Dymag H spoke
Year                1979