2.4L Chrome Bore 175 Running Issues

[croSSed]

LATEST UPDATE: I'm posting this for all you folks who have a problem like this and start chasing your tails. This is what has been happening in my case...
I found out that the starboard side head up by #1 cylinder was warped enough to have a slight head gasket leak. Some water was seeping into one of the comb chambers and causing it to run crappy at low rpm. At higher rpm the engine could burn off the water, so to speak. I had the heads milled flat, put them back on, got it back running on the lake. The first time out it ran great. Then it started running similar to what it was doing before. Shortening the story, I discovered that the middle carb's floats had failed and were full of fuel. BOTH floats, mind you. The fuel was seeping in at the seem in the float. At visual inspecting they looked fine, but the closer I looked I could see the fuel in the floats seeping out of the seam. I took the floats out of my XR2 block and was back on the lake. Today I took it out and things were fine at first, then it started running like crap AGAIN. Got back home, used the fuel bulb in the line to prime the carbs (I did this before to find the flooding carb the first time) and now the BOTTOM carb was doing the same thing! WTH????? AGAIN I robbed floats out of my XR2 tonight to fix it. Just to be safe I took off the 3rd card to see if they were also leaking fuel in, and I didn't see anything.
What gives with this???? I've NEVER seen 3 floats fail like this at roughly the same time. I'm going to buy a whole set of new ethanol-proof floats for both motors and hope that solves it.
Could sonic cleaning cause the glue that holds the floats together to fail?
I'll bet there are few of you out there that have heard THIS story. Peace.

[Baker343]

You stated your xr carbs worked fine on your other motor. Now your stealing parts to fix wh30 which sounds like you have no history on. I would buy 3 rebuild kits including new needle and seats and rebuild the proven carbs and set the float heights. I've never had a float quit yet. Like I said some carbs you just can't fix

[pcrussell50]

LATEST UPDATE: …
Could sonic cleaning cause the glue that holds the floats together to fail?
I'll bet there are few of you out there that have heard THIS story. Peace.

First of all thanks for continuing to follow through with this. In a help forum like this, follow-through is huge for the rest of us to learn from. This case especially for me because I have motors in the same family as yours

Anyway, I couldn’t help latching onto the bolded bit which makes me want to be sure of something… Did you sonic clean the WHOLE carb, floats and all? I’m a big fan of sonic cleaning but I’ve only done it with the carb fully disassembled and not the floats.

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You stated your xr carbs worked fine on your other motor. Now your stealing parts to fix wh30 which sounds like you have no history on. I would buy 3 rebuild kits including new needle and seats and rebuild the proven carbs and set the float heights. I've never had a float quit yet. Like I said some carbs you just can't fix

This ^^^

Would certainly help with eliminating variables in the troubleshooting process.

-Peter

[Mrzip]

.. Get New Neddles & Seats. Plastic Floats..

[derekfl]

the floats are all te same age. that is why they are all failing at the same time. everybody else who has the same age floats is experiencing the same thing.