I have an ´82 cb650, won´t start, or run.I pulled the plugs and I´m not getting spark thru at least two plug wires.I´ve tried to get the center plugs out, but haven´t yet found a plug wrench that will fit the center two plugs. My shop in town sold me a wrench but it won´t reach all the way down to get them loose.I guess I´m looking for a thin walled, 3 in. plus long 18 mm socket. After I get those new plugs installed I can recheck the spark thru the plugs.