Can anyone help solve this mystery? I have a 1977 FJ40, new to me last fall. I put in a rebuilt SOR carburetor shortly after getting it because fuel mileage was terrible, back firing on shifting, etc. Fixed that problem just fine, but I started having a problem with the engine stalling if I started it up after it sat with a hot engine for even a short time. Now that the weather is getting warmer, I'm noticing it even more, practically every time I shut down and restart soon after. Here's what I've done: suspecting vapor lock, I wrapped the fuel lines over the engine block, replace fuel filter and fuel pump, fussed with the carburetor adjustments per the manual. No success. OK, now here's the mystery clues: I realized that my stalling seems to happen mostly as I make a turn (like out into traffic!!) after startup. If I drive the vehicle until the engine is hot and then shut it down, I see bubbling in the window on the carburetor. If I start it up, it seems to run fine at idle, but if I rock the vehicle back and forth it starts to bog down (but doesn't quite stall) and I see increased bubbling in the carburetor window. I'm beginning to think the carburetor rebuild needs rebuilding. Does this suggest any definite culprit to anyone?