How do I fix a tiny crack in my oil drain plug, 1981 aluminum cx500 motorcycle.?

I have a hairline crack in the hole where my oil plug is. It leaks slowly but too much for me to ignore. I must fix it, but can I weld it and re-cut some threads? I have a stick welder but I fear that would just destroy the plug due to the whole thing being aluminum. Any ideas or help from the pros?How do I fix a tiny crack in my oil drain plug, 1981 aluminum cx500 motorcycle.?
jb weld itHow do I fix a tiny crack in my oil drain plug, 1981 aluminum cx500 motorcycle.?
use brake clean to clean it up good , then you can use jb weld on it . you have to get all the oil out of it