Hello, I was hoping somebody could help me out with the starting issue im having on my 1980 gs550l that I am currently restoring. So far the only way I've been able to start the bike is with starting fluid, but it absolutely refuses to start on its own. Once it starts, it runs good, but at idle it always drops in rpm until it stalls. When running, it is also slow to return to idle when it is revved up. The carbs are getting gas and the bike is getting spark. Any idea on what the problem could be? Air/Fuel mix? Bad coils? I appreciate any and all help and input. Thanks.