my mates just got hold of an mc16. revs lovley and clean all
through the rev range,untill it hits about 130kmh.then it just goes flat.the bike revs all the way to the red line,in any gear untill it hits about 130kmh.the valves are set up properly,carbs been cleaned and checked,and the plugs are the right colour.
any ideas anyone?,cos were stumped.
thanks

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i think it wants ringing
i think youve rung its neck.