ONCE THE ENGINE IS REPAIRED CHECK THE CO% VALUE WHILE IDLING TO MAKE SURE IT
IS WITHIN THE PRESCRIBED LIMITS. IF THE CO% IS NOT IN CONFORMITY, PROCEED WITH
CALIBRATION AS DESCRIBED IN THE ADJUSTING IDLE CARBURETION PARAGRAPH.
Removing the butterfly valve
N.B.
THE THROTTLE BODY IS A PART WHICH INCLUDES VARIOUS COMPONENTS AND IS USUAL-
LY SUPPLIED COMPLETE. TO TEST THESE COMPONENTS SEE THE "INJECTION" CHAPTER.
- Remove the 3 retaining screws indicated in the
figure.
CAUTION
THE THROTTLE BODY COMES PRE-CALIBRATED. TAMPERING WITH THE THROTTLE STOP
REGISTER IS TO BE ABSOLUTELY AVOIDED. THIS REGISTER HAS BEEN SEALED FOR THIS
PURPOSE. FOR PROBLEMS WITH IDLING SEE THE "INJECTION" CHAPTER.
N.B.
REMOVAL OF THE THROTTLE BODY CAN BE EFFECTED WITH THE MANIFOLD ON OR OFF
THE ENGINE.
- Make sure the seal rims on the coupling surfaces
between the manifold-throttle body and manifold-
head are in good condition.
CAUTION
IF AIR GETS IN IT CAN JEOPARDISE THE OPERATION OF
THE INJECTION SYSTEM, ESPECIALLY WHEN THE EN-
GINE IS IDLING.
- Make sure the throttle valve and related conduit
are clean.
- Make sure the supplementary air channel man-
aged by the Stepper motor is clean.
N.B.
IF THE THROTTLE BODY IS REPLACED RESET THE T.P.S. AND ADJUST THE CO%.
Injection Nexus 500 euro 3
INJEC - 214
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