I took out a part of the vacuum system of my car (Skoda Felicia 2000 Lx) with the part number 50AA74 10R8 on one side and in the other KLIXON 23VT,

When its cold, air pases troght the two pipes, when its hot no Air can pass trough, i know its part of the vacuum system pertaining to the warmup idle mixture, problem is, on what vacuum hose has to be conected and is it ok that one of the little pipes is not there (which i think is not

I HOPE !!!!, someone can provide me with the Vacuum system blueprint to have or at least how to fit this little temperature vacuum valve

i'm not really an expert on the carb models, but by your description it sounds like a warm-up regulator, the basic principle is that the engine needs more air when it's cold to maintain a stable idle speed..

the hoses will be attached, with one upstream of the carb (there may even be a port on the carb itself for it) and one downstream(possibly on the manifold plenum somewhere

totaly stock disassembled 1.3 engines jikov carburator shown in pictures below ;

i dont know exactly what it does , i didnt diagnose it but i am sure that it has two equal size hole one of it is not connected to any vacuume hose its free to atmosphere.

Dunno if this helps...

Stolen from Felicia 1995

carburetor-single parts / 1.3ltr. / carburetor engine:

2 115940384

retainer

/ 135

3 115940662

oval head panel screw

4X8 /

4 115940653

cheese head with bolt washer

M5X12 /

5 115940792

ground strap

/

6 115940970

fuel hose

6/10X310 /

7 115940972

hose

3,5/7,5X100 /

8 115940761

pipe clip

9 115940153

petrol vapour separator

10 115940250

vacuum unit

2nd stage /

11 115940654

cheese head with bolt washer

M5X16 /

12 115940470

torsion spring

/

13 115940160

bush for return spring

14 115940302

throttle lever

1st stage /

15 115940304

throttle lever

16 115940194

cap for screw

17 992746488

lock washer

8,4MM /

18 100940710

hexagonal nut

M8 /

19 115940611

mixture control screw / with:

M11 594 080 0 /

20 115940800

seal

21 115940630

plug

22 115940382

bracket for accelerator cable

23 115940450

suction valve

24 115940720

washer

25 115940471

conical spring

26 115940510

diaphragm

27 115940192

pump cover

28 115940650

cheese head with bolt washer

M4X14 /

29 115940802

seal

30 115940155

idling cut-off valve / with:

M11 594 080 2 /

31 115940443

thermo valve

32 115940793

ground strap

33 115940652

fillister head bolt (combi.)

M4X18 /

34 115940442

part throttle enrichment valve

35 115940991

gasket

36 115940351

injector tube / with:

M11 594 050 2 M11 594 080 1 /

37 115940502

strainer

38 115940801

Seal

5MM /

39 115940303

stop lever

40 115940182

Carburetor body, upper part / (POS.44-46,48-51,54,55,59-61)

41 115940655

cheese head with bolt washer

M5X18 /

42 115940196

cover with spring and heater element

43 115940651

cheese head with bolt washer

M4X16 /

44 115940220

axle

45 115940201

float

46 115940451

float needle

47 115940990

gasket

48 115951004

main jet

2nd stage /

49 115951003

main jet

1st stage /

50 115940663

fillister hd. bolt

M3X16 /

51 115940421

pull-open unit / with:

M11 594 066 3 /

52 115940971

hose

3,5/7,5X140 /

53 115940973

hose

3,5/7,5X120 /

54 115940670

parallel grooved dowel pin

55 115940500

strainer

56 115940762

cable tie

57 115940661

cheese head with bolt washer

M5X35 /

58 115940660

cheese head with bolt washer

M5X25 /

59 115940431

emulsion tube

60 115940530

breather tube

61 115940501

strainer

62 N 0209022

cable tie

6X246 /

(62) N 0209048

totaly stock disassembled 1.3 engines jikov carburator shown in pictures below ;

i dont know exactly what it does , i didnt diagnose it but i am sure that it has two equal size hole one of it is not connected to any vacuume hose its free to atmosphere.

Dude, let me just say YOU ARE THE BEST!!!! , thank you very, very much

Anweman thanks for the carb blueplint, i realy apreciate it and i realy wanted to have that

i see by the photo and plueprint supplyed that this little device is responsable for disabling the vacuum unit that controls the high speed fuel delivery system, if i'm not mistaking thats the reason why i have a 2000rpm idle at cold nomatter what i try to set it to normal (1500rpm) will check tomorrow and get a vacuum T