Again, the carb body part numbers (no throttle plates/shafts included) are the same for the 3 and 4hp engines in 69, so the venturi sizes must be the same. I’m sure there is not part number stamped on the bowl, so that won’t help in identification. I would love to what the differences in the high speed needle and bowls are, seems like mixing this stuff up could create quite the running issue. I think I have some of these carbs laying around, will pull them apart and have a look. Seems like the only way to know is to be able to identify these pieces by eye….
Great topic…
