Hopefully this is not too stupid of a question.
I have a Kawasaki 650sx (stand-up model) which would appear to be
for single riders only. I would like to take my children (5 and

for
rides (with life jackets).
We won't be going fast or buzzing others - but would it be illegal
(specifically in California)? I am sure the 650sx has a max capacity rating
- though I don't know it.
I have seen several people mention they were 225+ and riding, so I should
be able to add my 8 year old and not hit that mark, but is it illegal?