The idle air bleed on some models is
found in the venturi instead of in the usual location.
Some models take idle air from both positions at
the same time.
|of this manual relating to the secondary systems.
The primary side of these models functions the
same as the secondary side of other 4150 models.
|(5) BY-PASS IDLE SYSTEM - 4160 WITH
MECHANICAL SECONDARYS -This model incor
porates a by-pass idle system. Air passes thru an
opening into the main body cavity where it is
metered into the intake manifold by means of the
|(4) MODEL - 4150G AND 4150MG - On
these two models the idle adjusting needles are
located in the secondary metering block on the
secondary side and will be explained in the portion