Carburetor
Model |
Carter - YF |
Rochester B |
153 -PG |
153 - SYN |
230 Economy |
230 (P 20 - 30) |
230 |
292 |
3793019 (3402S) |
3792945 (3379S) |
7023021 |
7023011 |
7023017 |
7024009 |
Float Level |
7/16" w/o gasket @ free end |
1 9/32" |
Float Drop |
1 3/16" w/o gasket @ free end |
1 3/4" |
Idle Vent |
0.025" - 0.030" @ Idle Position
Engine Stopped & Choke Open |
0.050" @ Idle Position
Engine Stopped & Choke Open |
Bowl Vent |
1 Internal - 1 External Idle |
3 Internal - 1 External Idle |
2 Internal - 1 External Idle |
Main Metering Jet |
0.096" |
--- |
0.072" |
Metering Rod Sizes |
0.071"
0.052" |
0.070"
0.052" |
--- |
--- |
--- |
--- |
Throttle Bore |
1 11/16" |
1 9/16" |
1 3/4" |
Main Venturi |
1 5/16" |
1 1/16" |
1 19/32" |
1 5/8" |
Small Venturi |
--- |
--- |
19/32" |
Pump Discharge Jet |
0.0225" |
0.031" |
0.035" |
Idle Speed Jet |
0.026" |
0.057" |
0.067" |