Ok, so I just got a old 1979 Honda cb750k... The bike is in great condition, but it has a few problems... It has no seat, which I can work out on my own... It is also missing the battery, again, something I can take care of...But, the previous owner lost the key. So, now, I am hesitant to put money into it. I don´t want to buy a seat and battery, etc. If the thing won´t run. But I can´t really hook it up to a battery, and start it either, because I don´t have the key. Is they any way to start this bike without the key?