Spark plug resistor caps

Any body ever have a bad one??

Had my sled out the other day, pulled the plugs to check and had 1 dead cylinder. #3 was white but sopping wet.

Got my ohm meter out and checked the primary so I went plug cap to plug cap-- got Nothing, showing an open

twisted the plug caps off and the coil was about 5 ohms- which is good.

checked the other side, it read good but I replaced all 4 caps to be safe. Cut about 1/4" off the wires so the new
caps would bite good.

Question is how often do they go bad? And the white plug, I have never seen that and I own 10+ 70's yamaha 2-stroke street bikes, but then again i have never dropped a plug cap on any of them either.


Jeremy
 



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