Most of you have heard that I was forced against my will to put 40IDA3C carbs on my 914/6. Well, I had to rejet them for the S cams. I have not been able to get them to run correctly, and it has been weeks of dumping gas into the left 3 cylinders.

Today I decide to tackle the problem. I checked the float level, make sure all the jets are clean, verify the jets have the correct numbers, etc... Nothing appears wrong. So I decide to start over and baseline all the adjustments. I had already pulled the left air cleaner assembly, so I go ahead and pull the right one.

WTF!!!

ARRUUGGHH!!!

I installed the f***ing Aux venturis upside down on the left carb when I rejetted it.

So I pull it apart, and change the Aux venturis. I get it as warm as possible and adjust it. It idles much better (well, as good as can be expected with S cams and worn throttle shafts). It even sits there and blows neat little smoke rings while warming up.

I get the linkage adjusted and take it out for a drive... WOO HOO!!! It pulls almost as good as it did with the MFI.


So maybe now I can get better than 10 mpg on my trip to work.


As I said, I am officially stupid!!!!

well tuned carbs are no slouch
the IDS carbs with the auxillary enrichment circuit are very very nice on S cams too.... (the extra fuel is only added at high rpm and keeps the mid and low range clean)

really well set up carbs (with a wide band sensor) are not bad

brant

I still don't like carbs, but finding my stupid error makes them more livable. And I don't have IDS carbs, just IDAs. They work OK for me.



And I am still going back to MFI after I get the pump rebuilt.

Don't feel stupid. Imagine how I feel not having any idea what you're even talking about and I have a new set of PMOs sitting in a box that I'm going to need to install one day. My choice is either to pay way too much money to let somebody else have all the fun or learn a new language (carb'lish). I have a feeling I'll be asking lots of stupid questions when i get to that point in the project.

By then you'll be an expert!

Billy, if your PMO's are Brand-New and you gave Richard all the pertinent info, they should have the correct jets and you should not have any problems for quite a while.

T.C.

Richard Parr knows his stuff when it comes to carbs. Bolt them on, make sure they are synced, and you should be fine.

Not me... my hair is longer.

Now you might get 16...

"Officially" Wow, congratulations! Did you get like a certificate or anything?

[quote name='ClayPerrine' date='Dec 6 2009, 08:21 PM' post='1247100']
--><div class='quotetop'>QUOTE(scotty b @ Dec 6 2009, 04:52 PM) </div><div class='quotemain'><!--quotec-->

[/quote]


Not me... my hair is longer.
[/quote]

....and he is taller.......

KP

No argument there.... But I am smarter.

I thought you just admitted you were stupid.

I for one would like to see how you could install them upside down...

Rich

Nah....too easy....

...CLAY....don't feel stupid...bet you were just in a hurry, tired or got distracted when installing the aux. venturis. shit just happens sometimes.....BUT I HAVE A QUESTION....did you check the jet sizes...with jet drills/remers??? ...I am really upset with a (close to your situation) problem. I purchased numerious weber jets...new stuff...and as I'm building this set of 44-webers decided to DOUBLE CHECK the jet sizes I planned to use....NEW STUFF...the jet sizes were WAY the hell off..I mean a 120 main jets measured...135.....the 130s....measured 140....all the jets I,ve bought new are totally innaccurate!!!!......so Question for you or anyone is ,who has been the most reliable and ACCURATE supplier of weber jets? jets that you have actually measured to confermed the accuracy of sizes.???. any experiences/ recommendations appreciated....

PMO. Richard Parr makes jets and other parts to fit Weber carbs, and they are very accurate. I don't worry about the right jets when they come from PMO.

...............THANKS......I have never purchased from PMO but Know of their quality when it comes to six cylinder carburators...........I'll give them a call.....thanks again.

Clay,

What you need is something like this...

No... What I need is something like THIS!!!!

Click to view attachment


(Did I mention that I hate carburetors??)

You need an assdragger?

And, yes, you've mentioned that you hate carbs. LOL

Nope, I already got one!!!


I need that motor in my 914 /6!

Time to get creative!

twin plug motors are so sexy