craftsman weedwacker 31679108

Hi everyone.

So I forgot my weed wacker outside and it rained for 2 nights ... It wouldn’t start up as normal
But I was able to get get it started after day of drying out.

Now , rusty water is coming out of the muffler and it stalls when I put full throttle.

I’m guessing carb is shot or needs deep cleaning ??

Thanks