Carb Help

[Kalebtrojacek]

Hey y'all so I'm having some carb issues. Essentially I can run the cub for about 2 minutes after letting the fuel go to the carb for 2 minutes and then it dies. I've got fuel free flowing to the carb, but when I open the plug in the front bottom very little or nothing comes out unless the gas has been turned on for a while. What would cause this? I removed the screen at the inlet because I have an inline fuel filter.

[Don McCombs]

I've got fuel free flowing to the carb...

For how long? Let it run 2-3 minutes and see what happens.

[Bob McCarty]

Is the inline fuel filter designed for gravity feed systems and not fuel pump systems?

[Kalebtrojacek]

Uploading a video to post for yall to see. I am not sure what the fuel filter was made for I already threw away the package, but its got a good constant flow and ive never even seen the bowl on it loose fuel.

[Eugene]

Disconnect fuel line from carb. Let fuel drain through the filter into a container for 3 or 4 minutes. Quart of fuel, give or take, then the problem is in the carb.

Obtain a gravity flow fuel filter, for 1/4" hose.

[Kalebtrojacek]

It did 32 ounces in less than 2 minutes. If i was to buy a new carb what should i buy? This ones been JB welded and had other issues.

[Don McCombs]

I’ll probably get some blowback here, but…
If you really want to try a new carb, I don’t think you can beat this one.
https://www.amazon.com/NENKUTEN-Carbure ... 11&sr=8-11
The choke lever, alone, is worth nearly the cost of the carb. There are some caveats, however. Read through these articles before ordering.

CHINESE REPRO CARBURETORS FROM EBAY.pdf

(209.2 KiB) Downloaded 31 times

[welderrx]

My original Cub carbs had so many hammer marks on them and stripped fuel inlets, Last year I broke down and bought a Kipa carb off Amazon and installed it on my 1952 Cub slight tweak on the idle mixture and it's been great, I bought another one for my 68 Lo-Boy and am planning on replacing the Bendix / Zenith carb soon I think the composite float is getting heavy with the new fuel. I would like to rebuild the IH carbs I have at Cecil's Cubfest but I've got to say these Kipa's work great. TJ

[Kalebtrojacek]

Thank you gentlemen these are just the kind of answers I was looking for. I ran the cub for about an hour tonight I ended up just opening the float all of the way and she stayed running but of course when off the carb flooded! Starting to sound a whole lot better after running it for awhile!