Flo Jet carbs

   / Flo Jet carbs #1  

Geochurchi

Member
Joined
Oct 31, 2021
Messages
25
Tractor
B&S Vangard
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Good morning, anyone know what the difference is between these 2 carbs? Aside from the air intake.
 
   / Flo Jet carbs #2  
Look at the horsepower for the engines they are meant for. I assume one is going to be a lot smaller.
 
   / Flo Jet carbs #3  
Aside from the size (horsepower rating), they are both updraft carbs. The first one looks like the old Zenith carbs with a remote air cleaner. The second one looks like the air cleaner sits on top. Perhaps an oil bath type. The choke orientation is different on each--One on the engine side (inside), one on the outside.

Those are pretty old carb designs. I think mostly used on the cast iron small engines. When was the last time you saw one of those? ;)
 
   / Flo Jet carbs #4  
This is the first carb in your picture with item 164 as the mating air cleaner pipe


Uses either a foam oiled air cleaner or a paper cartridge style cleaner

And your second carb is for this style engine


Also with a paper cartridge style air filter

And I have worked on both styles of carb in the past 2-3 years
 
   / Flo Jet carbs
  • Thread Starter
#5  
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Thanks for the reply, this is a very unconventional use of a carb, it was installed on a FM Z 2 HP engine to replace the mixing valve usually installed on it. The whole engine sat under seawater during Ian, currently being restored, only this carb needs replaced now, hopefully with an aftermarket, any thoughts?
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   / Flo Jet carbs
  • Thread Starter
#6  
We are thinking of getting away from the Flo Jet, my calculations show a 50 cubic inch engine , thinking of using a Zenith carb if we could figure the right size, build a manifold to fit.
 

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