just bought an suzuki dt115 early 90s outboard, its in great condition running great except for when its idling if i start it it will idle perfectly for about 15 seconds the out of no were it just slowly dies, the same as if you have pulled the choke out, this happens every single time you restart engine, it also happens if your in gear at idle revs.... but as soon as it gets a little throttle it runs great, i i really need to get this fixed asap because trying to dock the boat is a nightmare, any help with this much appreciated , thanks