You guys sound like you know your stuff re carbs etc, looking for advice.
I have replaced the stock filter on my '83 CVH (XR3 n/a) with a nice Pipercross. Sounds good and much improved throttle response, but the car runs out of breath past 80 in top, and struggles to gain further speed. Can I cure this with adjustment or is it a gearing problem?
Also, what should I do with the the small air pipe that used to pass from a small valve in the filter box to the base of the carb, I've tried closing this off, leaving it open and is currently sitting with the original valve fitted.
your advice will be gratefully received
Many thanks.
