I have a 1993 kawasaki vulcan 1500. When I bought it, I installed a new battery. It was always hard to start once the engine was warmed up( like the battery was weak). I recently discovered a bad small ground wire from chassis to dist. box. Now it cranks like it should but won't fire. Pulled the plugs they were a little damp with gas but the spark looks weak to me. Could the loose ground wire have caused a problem with the computer? Any sugestions on where to begin would be a great help. THANKS