All Y39-3 type carburetors have two idle mixture screws. However, there are variations in the type of choke, position of the gas inlet, the type of linkage, and the bore size.
Click picture for close up view
Remanufactured Two Barrel Rochester Y39-3
with Choke on Top
This remanufactured marine carburetor is a "OEM" original two barrel Rochester marine carburetor.
The Y39-3 carburetor that you have chosen has the following variations.
Stock #
Engine Size
Choke Type
Gas Inlet Position
Linkage Type
Bore Size
Y39-3
4 Cylinder
120/140
2.5L/3.0L
Electric
Female
Choke Side
Single Hole
Small
The Y39-3 carburetor should look similar to the pictures below, don't expect each picture to
look exactly like your carburetor. View all the variations below for the Y39-3 carburetor and if this is the caburetor you need, order it at the bottom of the page. If NOT Click Here
Click picture for close up view
Choke Type
Down (Hot Air)
Side (Hot Air)
Electric Y39-3
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Gas Inlet Position
Female (Front)
Male (Front)
Female (Choke Side) Y39-3
Male (Choke Side)
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Linkage Type
Carburetors where the throttle linkage hooks onto the bottom can be bolted directly into the carb linkage or have an add on bracket (like at right) or a similar type that bolts to the top and bottom of the carburetor linkage.