i think i've screwed up. i changed both my sprockets and chain and went to put the slave clutch cylinder on and it won't fit flush-can't get the bolts started. i believe i've read on this forum that one cannot pull the clutch lever while the slave is off or the piston will protrude. i didn't pull the clutch lever but it appears the piston came out a bit anyway. i cannot tell by looking if the piston is out but i cannot imagine any other reason for the housing to not fit flush. thoughts?