Registered Forum User
WSB Hero
Bikes: 1993 - 944SS & Aprilia Falco
Posts: 7,795
Join Date: Oct 2002
Location: north east
Yep - I think for the best possible chance:
Charge both batteries well.
vent the area as well as possible (open garage door etc)
Use good quality jump leads.
Heed the connection warnings (connection to 'dead battery' last).
and connect to bike chassis rather than -ve terminal (footrest etc).
Good luck.