05-03-15, 09:57 PM
Remove the Air filter, hold the throttle open full, using a mirror and small torch/light look in to see if there are restrictors in the inlets.
If there are no washers in the inlets remove the tops of the carbs to see if a yamaha restrictor kit is/was fitted.
See pic
If there are no washers in the inlets remove the tops of the carbs to see if a yamaha restrictor kit is/was fitted.
See pic