volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Adjusting idling speed > < carburettor adjustment data
34 PICT, Keihin carburettor and ignition system
Servicing Keihin carburettor>07.78
Jets and settings

Engine code

FN 08.77 ▸

Version

Man. g/box

carburettor

Type
Part Nº.
Modification status

Keihin
055 129 022 Q
---

Jets and settings

Stage I

Stage II

Venturi

mm dia.

20

26

Main jet

112

165

Air correction jet

90

70

Pilot fuel jet

55

---

Pilot air jet

125

---

Float needle valve

mm dia.

---

2.5

 
V22-0618

→ Fig.1     Arrangement of jets in bottom part of carburettor

  •      1 -     Stage I main jet.
  •      2 -     Stage II main jet.
  •      3 -     Stage I air correction jet.
  •      4 -     Stage II air correction jet.
  •      5 -     Enrichment valve.
  •      6 -     Pilot air jet.
  •      7 -     Pilot jet (beneath screw plug).

Adjusting idling speed > < carburettor adjustment data