If you can get to the battery posts, do it the same as a car. They are both 12 volt systems. Just be sure not to hit the positive side with any other metal while it's connected. You can also push start it.
Forgive & forget. Just never forget when I forgive.
I've jumped my bike with my car and it starts but it didn't charge the battery even after I ran it for a while. I think you'll still need to trickle charge it. I bought a cheap one for $16. It took 10 hours to charge but it got the job done.