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How could this be?

PostPosted: Wed Apr 24, 2013 12:09 am
by Tims500
My right side cylinder stops firing some times. Pull the plug cap and I can hear it sparking. Plug and plug cap has been changed. I can smell the fuel, and got a whopping back fire a couple of times.

Any clues, never had one of these beasts before.


Never mind. The plug must have been wet with oil. Because on a whim I dumped copious amounts of SeaFoam in the tank and presto, when it warmed up, it started to fire. Sticky needle valve?


Re: How could this be?

PostPosted: Wed Apr 24, 2013 9:23 am
by Gman
Can you put your location after you model Tim.I forget things :?

There are two types of Spark plug caps used on these bikes and the US models usually have the more complicate,"Resistor" type ones.These are more prone to corrosion and break-down.

Click here,


I prefer the none Resistor type and R rated Resistor NGK plugs as per links and,

I recently found a possible US source for our unusual plug caps.You can be my Guinea Pig<grin> and buy and try some,