Stop in for a cup of coffee

I would really like to deliver it to him on Friday before we go on vacation.. gonna be close. And the M/C on the Scamp is still fighting me.. having trouble finding the correct adapter for the back reservoir. So rather than leave it on the car leaking away for another night, I took it off - now I am going to drain the SOB and take it with me to the parts store - which I guess I should have done in the first place..
I'm confused, what are you trying to do and how would an adapter plate stop a leak?