Dellorto DRLA CB Ubdate kit

[GreenTom]

HI
I've got a question about that stuff... I bought one and put into my DRLA's and now I've got a problem cuz: I've put 165 correcting jets, 136 mains, 46 idle and the car is still runnig "different" I've got 1600 engine, could You help me with those jets? what would be the best combination for toatly STD 1600 on DRLA's 40 with this bloody ubdate kit.?
PS. I have not much time cuz in september I'm going to Poland 1900km whith this car
thanks.

[Bruce]

....., 46 idle .....

Better check that idle jet again.  The only place in the world a 46 will work in a DRLA is at base camp of Everest.
If you live near sea level, I would suggest starting with a 57.

[Rob DVKK]

when I put them in my dual 45's. It took a bit of messing around to get it right. The changing of the primary and secondary vents to the single larger vent effects the signal for the idle circuit. I'm not sure how it works with a single carb set-up but with duals it was really evident. I think I ended up with a 60 or 65 idle. With the old set up I ran a 55.

Did like the raised jet holders - really helped with plugged jets. I think I'll have to step up and get some for the IDA's

1914 - 125 cam - 42X37.5 heads (were the specs)

[GreenTom]

thanks for advices I was thinking that they ar wrong those idle jets.

btw I've got two DRLA ...

and a nother question, now about thse dischardged tubes... how far did you pusched them in? just in the middle of the venturies? or fare more? did you put any oring betwen the and of the tube and the carb body?

thanks for advices

[Rob DVKK]

I'm pretty sure I just followed the instructions. The holes lined up with the pretty much the center of the bore - as for the orings, not sure anymore. I put the kit in back when they first came out (around 95?)

[Diederick/DVK]

'96 
So, it is advisable to run them? What kind of result do they give?
Better overall induction? Or just low revs/high revs?

[Rob DVKK]

I don't have any concrete results, but the top end breathing seemed to be better. I think it would depend on the overall combo taking advantage of a larger vent. Just my 2 cents.

[Diederick/DVK]

Does it come with new venturis?
What size? 36mm?

[Rob DVKK]

They're not much of a venturi, more like a sleeve. The ones I had in the 45's were like 40mm or bigger. The discharge tube works differently than a conventional primary and secondary vent set up. The high reving 1914 I had really seemed to like them, but there was a lot of messing around at the beginning to get them jetted right, just like any system.

If your going to switch the set-up of your carbs the best tool I've bought in the last 12 months is an LM-1. Takes the guess work out of the set-up. Wish I had one years ago.

[GreenTom]

I know what r u tlking about   innovate makes life much more easier LM-1 + RPMcable and lap top can show you all the AFR through all revs... very god stuff