Loose joints on Yamato valks

[hoju71]

Hi all,

Sorry if my topic is ambiguous.

I am having a problem with my 1/60 yf19 and yf 21...specifically they no longer stand on their own. The hips feel loose on them and I wish to learn how to fix that problem and tighten joints if I need to down the road.

Can anyone direct me to some resources for this or give me some tips?

Thanks,

Justin