Board index Flathead Power-Technical Questions, Answers, and Suggestions General Whatever-Technical 1927 JD Which is the correct carburetor

1927 JD Which is the correct carburetor

Pretty much anything not covered by the topics above. Short lived production bikes or vehicles, Electrical, Tires, Paint, Brakes, etc. Use this for tech questions, and "Shoot the Bull" for general conversation, no tech.
Post Fri Sep 12, 2008 2:55 pm

Posts: 2688
Location: Los Angeles, CA
All the books show a DLX38 as being a 1927 only carburetor. I have a DLX38 and it has four screw flanges for bolting on a carb cover. The parts book shows this cover. Yet the factory photos I find of 1927's show the earlier type carb with the choke venturi.

Posts: 3159
Location: Central Illinois, USA

That's certainly an "H" model (the airhorn is a spring-loaded valve; there was no choke mechanism, nor a venturi), which is certainly a curiosity since DLXs are listed back to '21 for the 74" H-Ds. And back to '15 for '61s.
However, I occasionally get requests to cut the 'horseshoe' 1 1/4" H float from J owners.
It wouldn't surprise me if commercial machines were often equipped with them.

Ironically, Indian models of the same vintages, such as the PowerPlus/Big Chief, are also often listed to have DLX carbs, yet many of those also are found with the large H installed. Deluxes may have been a preferred option.

There can be little doubt that you will find the DLX much easier to recondition and tune, and a much better performer as well. Most importantly, it has a bottom support!

Are you sure your DLX38 doesn't only have two airhorn screws instead of four?
The flange would be 'scalloped' instead of flat to allow air to enter.


Return to General Whatever-Technical