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by Crackleport » Sat Nov 18, 2006 4:10 pm
Hi Guys
1981 ! Speed Hill Climbing on CB72. Photo taken 'Gurston Down, Wiltshire. UK. Modified again from previous year. Now SUPERCHARGED. Fitted small German made Rootes type blower. Driven by 'V' belt from alternator side of crank. Fuelled by Methanol through SU carb (see photo- carb visible just above footpeg, gear change side) No float bowl - fuel fed direct into main jet and controlled only by needle.
Crank configaration altered to C72 spec allowing even pressure to each cylinder. Cam altered to match, also points backplate and timing. Lowered compression.. 25 years ago !!!! Still got the parts to build again someday. - Ian Hainsworth
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