I have a problem with the left side plugs getting zero spark. I swapped the ignition coils and only get spark on right side, then swapped the cdi boxes and still no change. Then per the service manual I did a resistance check on the pulse generator. The book says I should get 480 ohms + - 10%, from the blue to white I get 425 ohms, and from the Yellow to white I get open. I have been looking for a new pulse generator Honda Part (30300-me9-154), but every place I contact says it is discontinued. Does anyone have an extra part or a lead on where I can get one. Or what other parts are compatable.