Twin carby cold start -Tips??

[Wayne Murray]

Thanks for your thoughts guys. 
Im still not convinced I need a balance tube. Seems like its more needed when running dual barrels, not really on Single barrels. 
I have no idea on jets, they are straight out of the box. 
I have them setup pretty good, butterfly’s closed, linkages set up, mixtures etc. plugs look pretty good. Consistent colour. Greyish. Im curious on engine temp tho. Seems quite hot. Pretty hot to touch main tinware in front of pulley. 
It has a very slight cough just off throttle when cold. Warmed up, runs well.
Yes, Im using a rebuilt 009. Runs 32-33 degrees at 3100rpm. Max advance. About 11degrees at idle. 


I have learnt ALOT since owning the VW. Its a great learning tool. It tests my patience at times but thats cause its my daily driver. Thankfully Im a mechanically minded person (Fitter and Machinist for over 32yrs)

Im thinking about buying a beetle in the next 12mths…. Loving the simplicity…

You may have your dual carb balance tube mixed up. On my other kombi motors I run Dellortos which are duel barrel carburettors and they do not have a balance tube. As each barrel is operating one cylinder and that you can synchronised each barrel. As on a single barrel you have one barrel operating two cylinders and need to balance it out between the four cylinders. Even on a type 4 motor in a kombi Solex 34PDSIT-2 3 they are single barrel and also have a balancing tube.
I'm not saying or trying to convince you, that you need one. stating that duel carbs don't have a balance tube and singles do for a reason. Your carburettors may run fine without it and if your happy the way it runs, leave it and see how it goes. Haven't seen a set of Kadron copies so not sure if there is any difference with an original set. I take it your manifolds came with your carburettors and don't have any holes for a balance tube built into them?