Datsun BLUEBlRD P 410 Series Service Manual page 64

SPECIFICA
TIONS
20 30CE
Type
PrImary Secondary
Bore dIameter
28mm
30mm
Ventun dIameter 21 8
mm
25 14 7
mm
Mam Jet 96
l1S
Mam
aIr
breed 80
60
Slow Jet 48 48
Slow
aIr
FIrst 100 l20
Slow
aIr
Second 220
EmulsIOn hole
er
60
x
10 60
x
14
Slow
econcrnlzer
20
x
2
Power Jet
55
Power valve
BegInS
to
open when
the prImary throttle
valve
IS
at
480
opemng
Float level
19
mm
below the upper surface of
the
float chamber
body
The carburetor has the functIon
of
atomlzmg
the fuel
mlxmg
It
In
SUItable
raUo to
aIr
and
supplymg the
mIxture
to
the engIne
It
IS
therefore
an
Important part WhIch
can
Influence the
performance
of
the
engme
The Model 20 30C carburetor
IS a
hIghly
effICIent
carburetor of
two
barrel
two
step
and down draft
type
haVIng
the
follOWIng specIal
features
y
a
Construction
and
Operation
J
FJg
1
49