also might look for air leaks O-ring on the choke could be warn out.........and they are metric or just replace the whole choke for about 25 bucks......
that is a j-arm bike with after market arms...........and I think it is made up there by jenson motor sport......but need a closer look just at the arms its self...
he has d-arms on top which are aftermarket upgrade for the j-arms..........and the bottoms can be replaced with newer one's I ran a check on the bottoms and they where the same part #'s...
might want to check for air leak too.....O-ring in choke could be warn out and causing too much air...and they are metric O-ring too if it needs to be replaced.....
point taken I would use a multimeter over a car battery you could fry more thing than just wire like the cdi or stator......with that 12 volt battery i think street bikes run only a 6 volt...