The '98 has a lighting coil on the outside of the flywheel in the housing(it's a ducati lighting coil), The piece That goes inside of the coil will unscrew from the flywheel,(lefthanded threads), then you use a flywheel puller on the flywheel, it's the same puller as most jap bikes, suzuki for sure, in fact the ignition stator is the same as '91 -'95 RM, I've taken them out of an RM and bolted them right in the gasser without any mods, and the same flywheel as the RM 250 from the same'91-'95