2004-2009 Suzuki LT-Z250 Service Manual, Page 285Get this manual
SERVICING INFORMATION
ELECTRICAL
ITEM Spark plug Type Gap Spark performance Ignition coil resistance SPECIFICATION NGK: DR7EA DENSO: X22ESR-U 0.6 0.7 (0.024 0.028) Over (0.3) at atm0.05 1.0
Unit: mm (in) NOTE
Primary Secondary
10.5 9.0 120 and more 80 155 0.5 12 4.0 and more