Hi, It's a fiddly job,as with a lot of more modern bikes space is limited!
Tank does not need to come out, but the inner mudguard does,easy enough ,screws may(ok, will be)rusty,sniping carefully the ties holding the cables,disconnect earth from batt first,then pos,batt will( hopefully) slide out to rear,may be some packing pieces etc. Replace the large cables to starter( if not already done) with bigger ones,getting the cover off the top of the starter can be a pain,then pop in new batt( would recommend oddessey or similar - can't remember which one)
Make sure it's not abutting anything-sometimes the sub- frame bolts have been replaced with longer ones,worth a look-use packing foam etc,pos cables then neg, check all surrounding cables for heat damage,cable tie up cables carefully. Make sure she starts ok, then refit mudguard with new screws and away you go.......might be worth fitting a charger kit( ctek for oddessey )
Cheers will
