Howdy, I have just recently picked up a GS250FW that runs, but not
all that well, it only starts with full choke and keeps dying, It
turns out that one of the cylanders only has 24 psi and a second, has
next to nothing,

We are hoping that its just the valves out of place as we thought it
was the carbie but when we took it into get reconed, the guy told us
that its commonly the valves going out of place and not sealing
properly causing the bike not to run properly, And I was just wanting
to know if anyone had any idea on how to adjust these?