my67xr
Miniriders Legend and Master Spanner Spinning Mode
have you tried spraying the joins from carby to manifold, manifold to head with it running, use crc,wd40 etc
if the idle changes then there is a leak.
when you set the mixtures,
did you raise the idle speed up to about 1800rpm and adjust the mixture screw to get it running at it's fastest/smoothest point,
then when you are happy, drop the idle back down to normal
if the idle changes then there is a leak.
when you set the mixtures,
did you raise the idle speed up to about 1800rpm and adjust the mixture screw to get it running at it's fastest/smoothest point,
then when you are happy, drop the idle back down to normal