2ltr Kombi jet sizes

I am shortly going to buy a 2 liter kombi the owner says it is quite thirsty does anybody know the best jet combination for the twin carbies. Also can you get a manifold to fit easily that has only one carby/ I'm thinking one is easier to tune than two. What type of carby is best.
Trevor//

I have a spare single carb with manifold you can buy cheap if you like. It bolts straight on (it used to be on my 2L kombi). I'll take pics tonight.

vwtrev1 wrote:I am shortly going to buy a 2 liter kombi the owner says it is quite thirsty does anybody know the best jet combination for the twin carbies.

Stock? Aftermarket? Has the engine been modified?

Also can you get a manifold to fit easily that has only one carby/ I'm thinking one is easier to tune than two. What type of carby is best.
Trevor//

I have a single weber and would recommend against going the single carb route. The biggest problem is that the long unheated manifold runners make it perform poorly in cold weather (though you would be ok on Bribie Is. - just don't ever go anywhere cold!) Once warm, it runs well but lacks power. As my kombi came with the single carb, I don't know if it's better or worse than duals (but hopefully one day soon I'll find out!). Another potential problem with the single weber is the rubber boots that join the manifolds to the bit the carb is bolted to are a source of vacuum leaks.

Hope I've talked you out of going single carb!

what MNS says, plus one persons perception of thirsty is another persons perception of good economy
kombis are a large wind resisant box with a small low powered motor, if you get 300km or over out of a tank, then that is not bad. there is only marginal almost imperceptable differences of overall economy in the 3 jet sizes that normally turn up in 2L kombis
if the economy is really crook, then you should be looking at the whole state of tune & condition of motor first

I used to run a 180 Holly single on my 2L and it was superb!! id highly recommend it, easy tuning, frees up heaps of room in the engine bay too which made everything else easier! fuel economy and power was great!

I lived north coast and Brisvegas so i cant comment on real cold temps!

The biggest problem is that the long unheated manifold runners make it perform poorly in cold weather (though you would be ok on Bribie Is. - just don't ever go anywhere cold!)

That is exactly the reason that I took the single carb off my Kombi and fitted stock dual Solexes instead: I live in Canberra, we have very cold winters, and the long manifolds were freezing up.

The single carb with long manifolds had been fitted by a previous owner who lived in Queensland, he never had any trouble with freezing and he liked the simplicity of a single carb.

So where you live makes a big difference to what is best for you!

often when the carbs are worn the idle jets are increased in size to get over a flat spot when driving out of corners etc. usually go from a 55 up to 60 or 65. i could be wrong there on the sizes so dont quote me.

55 idle jets are about right and for a stock 2lt i would run 140 mains i run them in my big bore 1800

Thanks for the info/ I'm going to stay with the twin carbs as I will be going cold places. Thanks for the jet sizes.
Trevor//

COLD PLACES, let me guess,girraween national park near stanthorpe is going to see more kombis?