<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by esdbass &raquo;</TD></TR><TR><TD CLASS="quote">John: Yes I heard from Merc Tec it was largely in the fuel curve. I also note that the drivers are different and maybe Don would know but I haven't heard about as much coil issues on the older XS's either </TD></TR></TABLE>

Yes, the older style ignition had externally mounted coil drivers. They were also "single-strike" coils (and the combination of these operated a little cooler).

The newer "multi-strike" coils were designed to improve idle quality, and also help to provide for a "cleaner burn" of fuel at some RPM ranges.