the best thing i ever did to get more grunt out of a gg 250 was a adjustable pv cover . didnt do much for the 300 i fitted it to. got a 4 ball 98 pv governor to try in my 05 .the works team had different springs .on ktm and beta the pv gov spring can be changed by undoing a bolt .disappointed that rieju didnt look to improve the pv adjustablity
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