Weber DCOE float check 

Thanks for the video. I found it really hard to see down the main jet hole (especially on a Mini) so I instead used a dipstick approach using your idea. I extended & locked the caliper depth gauge to 45mm, dipped it in the hole down in to the fuel until the caliper body seated on the opening and then unlocked and carefully closed the caliper until it got to the wet line - should be around 20mm. Subtract this reading from 45mm gives the depth to the top of the fuel.

cheers very handy quick way of checking the level greatly appreciated

This is a great idea! Thanks for this video. I'm going to try this on my OER carbs.

Great video by the way 👌🙏

The best fuel height I have found is 29mm - 25mm has the fuel too high - See: www.classiczcars.com/topic/44512-setting-weber-dcoe-fuel-level-with-caliper/ and centerlinealfa.com/sites/centerlinealfa.com/assets/files/default/dcoe_setup.pdf I have tried both 25mm and 29mm - 25mm caused a lot of stuttering and hesitation, while 29mm cured everything.

You should remove both main jets. The measure should be 29mm±0.5

Is the noise in the background of the video is that the fuel pump running with the engine off?

What happens when you have a mechanical fuel pump?

what height should it be.thanks