hi there, i have a 1980 200 cd benly 6 VOLT system iam pulling my hair out with the spark plug problem . i bought 2 ngk set went duff on me . so bought denso set. went duff. the bikes only done 100 miles since i rebuldt it . so 2 weeks ago i bought 2 bosch ur 2 ac only started the bike 5 times since nothing coming through the plugs . tryed 2 i have from my old 250 dream spark fine, tryed 2 from my car fine spark. as any one had this problem . its as if its blowing the guts out of the small plugs. ?