I have been dialing in my Webers and working on the 3 - 4k range with the main jets. Having success too.
But last time I put in the emulsion tube #4, out of the corner of my eye I saw a flash of brass. Yep - the main jet had fallen off the tube. (I was sure it had a tight pressure fit, but ...noooo.)
So I took my mirror and flashlight and could not see it anywhere. I thought it had fallen down the venturi - but not completely sure.
So next I put a light vise grip on the throttle arm so the throttle plate would not open sending the jet into the cylinder, then proceeded to disassemble.
Step by step , all the way down to the intake manifold, I could not find that blasted jet.
So now I am thinking the worse, some how it made it's way into the cylinder
(fiy - I meticulously cleaned the engine compartment, and I looked everywhere (Everywhere!) before beginning all this.)
With mirror and flashlight I can not find the bugger. So now I rotate the engine until the pistons are at their top , still not see or feel anything. So I take a pencil and stick it down #3 and #4 when each is at it's top to see if I can feel / hear anything. Nope.
Next I take a shop vac and stick it on cylinders to try and vacuum it out. Nothing. Then I thought better of this , because I got a visual image of me blowing up my garage. (electric spark + gas vapors = dead Carlos)
Then I rotated the engine around a few times via the crank . Did not feel or hear anything.
At this point I am thinking it is simply hidden somewhere in the engine tin or compartment where I could not find it. I reassembled everything, but before cranking wanted advice.
If the jet is in the cylinder , would I feel it by hand rotating the engine like I did? Would the cylinder even make it to the top of it's stroke? Could the jet keep me from being able to rotate the engine? What happens if it is in the cylinder, and I crank it - lunch the engine?
Before I turn bad luck into something stupid, I thought I would ask for some advice. Help.