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StevieG

Thunderace power issue

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Hi All . I Have a thunderace sitting In my shed that I brought a number of tears back , the exhaust system had been replaced by the previous owner and the Exup valve removed . The issue is that it accelerates hard up to about 7000 rpm then will not rev past that  ..Any ideas where to start ? 

Thanks 

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If its been sitting in a shed for some years, then id guess that the carbureters require cleaning out as the fuel will have gone off in them

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