Finally got the o-ring that works, matched up few but none fit well till I got one form Razee's today, not the KTM part as it only available as part of $90 rebuild kit, still it went in like butter (others were too thick)
New AGM battery barely cranks the bike, 5 series is suitable for a 50cc scooter not this 525 cc thumper, what were they thinking? "Ve mast zave veit at all cost!" but at least I got it started, rode around the shop for a while, no helmet or gear so it was a short ride and I froze my ass off. My first impression HOLY SHIT!! 3'd gear wheelies!! Can't wait to take it to the woods!