SUZUKI Coils 2 wire vs 1 wire

DT-115 1985-carburatored has 1 wire coil, newer coils (which are still available) have 2 wires. Is there a way I can make the 2 wire work?? Not an Ele engineer but could the 2nd wire be grounded to the block? One wire is solid black the other has white dots on black background. Thanks in advance.
Tim