Good, ShanMan. I just assumed that a resistor in the cap and a resistor in the plug would cut down the spark voltage. And I wanted the hottest spark. I did a search on Yahoo and found this site about ultralights http://www.ultralightnews.com/enginetroublshooting/resistorcapsandplugs.htm. Basically, the resistors cut down the spark, but make it last longer. The problem is if any fuel or moisture gets on the plug. With the large resistance, there is not enough juice to jump the gap and there's no spark.
I've seen bikes that stopped running in heavy rain and thought that the wires or ignition got wet. Maybe it was moisture in the intake charge that got into the combustion chamber and prevented spark. My old Suzuki has high output (Dyna) coils and wires, and non-resistor plugs. It starts easier than my newer Honda.
I've seen bikes that stopped running in heavy rain and thought that the wires or ignition got wet. Maybe it was moisture in the intake charge that got into the combustion chamber and prevented spark. My old Suzuki has high output (Dyna) coils and wires, and non-resistor plugs. It starts easier than my newer Honda.
