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Monthly Archives: July 2011

Solex Stock Carb Jets

In the quest to get better mileage, still 14mpg, I’m looking for solutions. One thing I can do is decrease the size of the main jet so the engine doesn’t run so rich. I’m thinking I have a 130, so I should use a 127.5. I also wanted to see what was originally in the carb. Yes, I know I can take the carb off and look, but with me in Chicago and Kermit in Mi, it’s rather hard. I found this list….

Stock Solex Jets

28 PCI... with removable Venture… Venturi =21.5 mm… Main Jet = 117.5/122.5… Air correction jet =180/200…Pilot jet = g50… Idle air jet drilling = 0.8… Power fuel jet = no…Emulsion tube = 29

28PICT-1… 1961-1965.…Venturi = 22.5 mm… Main Jet =122.5… Air correction jet=125z/130Y
Pilot jet =g55… Acc pump jet = .50…Idle air jet drilling = 150… Power fuel jet=1.0mm
Accelerator pump feed = 1.1-1.4cc/stroke…First year of Automatic choke.

30 PICT-1… 1966-1967…Venturi = 24.0 mm… Main Jet = 125… Air correction jet =125z/135z
Pilot jet = g55… Idle air jet drilling = 150… Acc pump jet = 50…Power fuel jet = __
Accelerator pump feed = 1.1-1.6cc/stroke…Larger Venturi

30 PICT-2…1968-1969…Venturi = 24.0 mm… Main Jet = 116/125… Air correction jet =125z/135z
Pilot jet = g55… Idle air jet drilling = 130/135…Acc. pump jet = 50… Power fuel jet =60
Accelerator pump feed = 1.3-1.6cc/stroke…First year for Power fuel system which draws
fuel directly from the float chamber under full load at high Speed.

30 PICT-3…1970…Venturi = 24.0 mm… Main Jet = 122.5/112… Air correction jet = 125z
Pilot jet=65… Pilot jet air bleed = 135…Acc. pump jet = 42.5… Auxiliary fuel jet = 45
Auxiliary air jet =130…Accelerator pump feed = 1.3-1.6cc/stroke…Idle speed is controlled
by bypass around the throttle plate.

34 PICT-3...1971-1974… Venturi = 26 mm… Main Jet = 127.5/130… Air correction jet = 75z /80z
Pilot jet =g50/55… Pilot jet air bleed = 147.5…Acc. pump jet = 42.5… Auxiliary fuel jet
=42.5/47.5… Auxiliary air jet = 90…Accelerator pump feed = 1.3-1.6cc/stroke…Larger
Venturi.

34 PICT-4…1974 (Calif.)…Venturi = 26 mm… Main Jet = 112.5 to 130… Air correction jet = 75z…
Pilot jet =55 to 60… Pilot jet air bleed = 147.5… Acc. pump jet = 42.5…Aux. fuel jet
=42.5… Auxiliary air jet = 90…Accelerator pump feed = 1.1-1.7cc/stroke

Float weight 1961-1967 = 5.7 grams and 1968-1974 = 8.5 grams

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Posted by on July 7, 2011 in Maintenance

 

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