What Size 45mm DCOE weber jets 18rg?

[DaveSpec]

Hi
So i bought an 18rg with 2 45mm DCOE webers and have rebuilt engine and turns out shes not running properly because theres too much fuel going into the engine and it cant burn it.
So i would like to get opinions on what size jets i should use because the 2 carbies have different sized jets!
the engine is an 18rg 88252
8.5 compression
extractors
2.5in exhaust
entire engine rebuilt including carbies (carbies not done by me, hence just finding out about the jets..)
One carbie is running 130 main jet with f15 emulsion tube and 45f9 main idle jet with a 95 mark on the head (not sure whta part that is)
the other has 150 main jet with f2 emulsion tube and 50f9 main idle jet with no mark on the head.

Not sure if i should go to the 130 size jets for both carbies or go even smaller?
any insight would be greatly appreciated

[Willofan]

Jetting for 2ltr 18rg on twin 45s
36mm chokes
140 main jets
F16 emulsions
170 air correctors
40 pump jets
45 f11 idle jets
4.5 aux vents

[DaveSpec]

Thank you very much, will try to get a hold of these

[MorGo]

Jetting starts from the size of the chokes;starting point being 4 x choke size so first you have to find out what chokes you have there.

[DaveSpec]

I have been playing with the engine a bit because i found a set of the same jets for both carbies at home. Not sure if i need different jets at the moment because cylinders one and two run perfectly, the plugs come out a nice tan. However cylinders 3 and 4 plugs come out covered with a dry black soot and the carbie is backfiring slightly. Not sure if this would be the jets or maybe an air leak?

[MorGo]

You need to balance the carbs.. Meaning that the blades are open at same angle in all the throats.Simplest it will be done by checking the blade position compared to progression holes but you probably don't know what they are so find a carb balancing device somewhere.
Or the fuel level may be different and the floats need adjustment.
Best bet would be that you find someone who REALLY knows what he/she is doing;there is too many "experts" who have no idea how carbs really work and just repeat something "it worked before!"