Most of the time when I'm replacing a condenser fan motor, I'm replacing a motor that has 3 leads Black (to T1), Red (to T2) and Brown (to Fan on the dual run capacitor). Sometimes I'll have to use a Universal motor that has Black, White (Red) and 2 cap leads...one with a white stripe, one without). I usually just get the right size (5 or 7.5mfd) cap and, hook the Brown leads to it, then Black to T1 and White (Red) to T2.
I should know the answer to this, and I'm kinda embarrassed to admit it, but isn't there a better way to do this? On the motor with Black, White and 2 Browns, why can't I connect Black to T1, Plain Brown to Fan on the dual run capacitor and tie White (Red) together with the Brown wire with a white stripe together and put it on T2? Obviously I'd make sure the dual run cap was the right capacitance and still in good shape. If Common on the dual run cap was getting it's juice from T1, wouldn't that work?