I got a pair of 4 into1 K0 rear turn signal ears during covid. Last night I noticed the left one has a tube loose from the bracket.
I tried their pilot jets to CB750. Size 42.5.
They were a little tight.
Engine ran bad so I removed them.
Found that 2 of them were broken, the thinner bottom part stucked in the carbs.
I had to remove carbs and drill the brass residues away.
2.0mm drill removed it. I drilled all carbs to be sure they will be equal. It might have taken a very little alu from carbs.
Measured the depth, tape on drill to mark where to stop.
Old stock 40 went back in.