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Float drop

11212 Views 8 Replies 4 Participants Last post by  DerickS
Whats the float drop measurement on a early 1947 JD A carb? How is it measured?
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Drop? I think the height should be more critical.
If you start the way I was taught :eek: with the carb apart flip it upside down and the float should be level. Then it will run and you can adjust it from there.
I really hate doing carbs but I deal with marvil and zenith and they can be a pain at times :lol:
Id raise it a little bit. Does it have a screw for the main jet? If it does run it to full throttle and adjust it in till it starts to die out and go 1/2 to 3/4 turns OUT. Should be close to normal driving but if you plow you may have to run the screw out a turn or two ;)
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