Originally Posted by James Raby
PMSL @ metering unit being shafted
it's the air rushing back through the turbine blades, thats all the noise is
called it fluttering, cos thats what it's doing (same as a bird, the noise is the air being moved arround)
you can self control the flutter too, dont take foot harshly off accelerator pedal, practise and do it softly or just in the right place and it lasts a little longer

i totally agree with what ya saying there. just thats what i got told in GD and 3 weeks later my metering head was fooked.
but i do prefer the sound of that to a chud valve