ddranged
XS650 Member
Hello, new to the site and relitively new to bikes. anyway i have a 73 that i am in the middle of chopping up, and i hear so much about how cool these bikes are i had to buy another one right now in order to ride now. anyway a couple weeks ago bought an 82 xs and well the guy that had it before me said he had the bike rewired, tank lined, and carbs rebuild and drove the bike for 3-4 days and then parked and i bought 7 months later. after sitting he fired it up and the bike will only throttle up to about 3000 rpm and it just bogs down and will back fire. i bought it cheap assuming it was carb issues but the bike idles ok just wont rev up (even warm and on the road) so i took the carbs off and cleaned them again and still no difference. so i tinker a lil more and well my battery goes bad. i cant kick it over or anything, well i hooked a battery jump box to it (and it kept saying check battery when on any charge setting) and when i put it to engine start it fired right up and would rev through the entire rpm band no problems like a new bike. im puzzled as to why forcing high amperage to it would make it run fine. i have tested the rectifier via instructions online and that seems fine. any help would be uber sweet. thanks in advance.