Originally Posted by
YVR Cockroach
Almost definitely no chance if between terminals (1 <==> 2). Extremely tight if even possible within terminal (the various Air Asia won't through check at T2 on separate tickets) and there's the satellite bus shuttle work at T1 mentioned above. And lastly, don't forget check in cut off for bags which is ~ 1 hr.
Change your flights. I'm guessing you are saving money with s two-ticket trip: splash $100 of the saving on a hotel if you need an overnight. It will buy you peace of mind and you neutralise the threat of a having to purchase a last-minute KUL PER ticket.
You
could make it if stars align, but delays happen and KUL's a clunky airport to navigate when the satellite is involved.