22-04-23, 11:08 PM
Your welcome,
That type of guages need to be set before use. You should be able to unscrew the glass and pull the needles off. Then push the needles back on at the zero position and screw the glass back one.
Test them on one Carb to see how accurate they are and note it. Not perfect but workable.
They are not the most accurate, just cheap and OK when set.
I use Davida Vacuum Guages, probably the best out there, but they are expensive at over £150 for the set
That type of guages need to be set before use. You should be able to unscrew the glass and pull the needles off. Then push the needles back on at the zero position and screw the glass back one.
Test them on one Carb to see how accurate they are and note it. Not perfect but workable.
They are not the most accurate, just cheap and OK when set.
I use Davida Vacuum Guages, probably the best out there, but they are expensive at over £150 for the set