hi - i have a 1980 sp1000 that needs a new battery - the old one was a yuasa Y60-N24AL-B ( wet cell that's hard to find) - someone told me that if i don't get the right battery, the bike will misfire - i read here that a westco 12V30 works in some bikes - does anyone know anything about the deka ETX16L battery? - i'm told it's a direct replacement for the old yuasa - any help would be greatly appreciated