11-03-2019, 12:20 PM
When you accelerate using the lever under the bonnet it picks up OK but the weighted piston you can see drops back down even when revving high. With the tube removed the piston stays up and only drops back at lower revs. It used to run well but I cut a small piece off the tube as it was split and that's when it started doing it. I am sure it's to do with a mixture problem but adjusting the jet position lean or richer makes little difference. The jet was centred as per the book and the piston drops back with the requisite clunk. The needle is dead straight.