hey guys just posted about my 91 crx si, it also has one more problem im hoping to get some help with.

it has a hard time starting up, like i said i just tuned it all up but heres the problem.

when the car has been off for about 2 hours or more, it cranks fine but wont start up. takes like 4 or 5 tries to actually get it going. but if im driving it around all day, and dont leave it offf for more than an hour or so it starts up fine.... i find it wierd..
im thinking it could either be the main feul relay or the distributer. any other ideas?