![]() ![]() Unfortunately when I fitted both plugs then has an air leak (carbs not seated properly), removed the rear plug to inspect it and re-instal but it sheared off the threaded section though I was able to feel it come loose and it came back out with the plug. My previous bike (Pegaso 650) has issues with running rough below 3000rpm which can be helped a lot with iriduim plugs or the brisk candle plugs (people are sayig the brisk is a further improvement over the iriduim plugs) ![]() If you notice a change bigger than a standard set of plugs then you probably have something wrongg with your state of tune.Īll IMO, but based on 7 years with Bosch. If you have a more or less standard engine, with fully functioning standard ignition, use any of the current common brands of recomended sparkplug and change the plugs at the normal service interval there is unlikely to be any measuraeable difference. In the same vein, the plug might be more beneficial if you do a lot of stop go type of riding because you can burn the fuel more efficiently - richer or leaner, the weak sparked spark always works?ĥ.will the multi spark plug lose out in high speed high throttle riding bec the the weak spark can't burn all the fuel? Is that the right logic? So multiple electrodes is simply the same as replacing the plug more often, but it is more expensive so not necessarily good value.Ĥ. The more worn the plug, the shorter the spark duration so the less flame front that it starts, this mostly effect lean conditions and when really worn can cause misfires This in turn leaves less energy over to continue the arc that would normally run for a few milliseconds. The plug does nothing a standard plug does not do, EXCEPT wears slower as there are more electrodes to wear out, so the spark stays strong longer.Īs a plug wears the voltage required to simply get the spark started is higher, so more of the available ignition energy is used simply to get the spark started. Plug temperature selection is a different thing all together.ģ.the benefit of the plug is really when you're pulling the throttle at a consistent situation like cruising therefore it's also beneficial in high speed riding? Plug temperature is a function of plug design, mostly lenght of center eletrode, nothing to do with number of electrodes. Where did I say that? it is the same spark, but the plug in effect wears slower so the spark remains strong for longer.Ģ.this multi spark plug design is better for the plug's life itself bec it doesn't burn too hot. The design advantage of the multiple electrode plug in itself is the wear is slower over the service period.the rest is marketing.ġ.the brisk plug fires a weaker spark but is more efficient. So more or longer sparks can give better economy in leaner conditions such as cruise. Both burn well once started, but the smallest of flames gets the well covered field ablaze easily. Imagine trying to start a sparsely covered straw field to burn as apposed to a well covered field. The three electrodes also tend to spark from different thirds of the center electrode outer diamater, giving better wear there too.īut there is the thing, you get ONLY ONE SPARK! The spark does not split up and go there ways, it simply takes the path of least resistance, usually the smallest or wettest (with fuel vapor) gap.īut multiple sparks, or as today's higher voltage ignitions provide, longer sparks, do help fire a lean combustion mixture as the leaner you go the more spaced the fuel molecules and the harder to get a full flame front happening. By using three electrodes you sppread this spark erosion over multiple electrodes to spread and lessen the wear. Much of the wear is on the earth electrodes and is mostly spark erosion. The Premium ZC spark plug has a centre electrode with copper core and the Premium ZS has a silver centre electrode.The three electrodes give better wear without the use of expensive exotic metals. The Premium ZC/ZS range spark plugs require powerful ignition systems, perfect blending of mixture and utilisation of the engines in the high-rpm zone. The special spark gap protrudes deep into combustion chamber, thanks to which the mixture is perfectly ignited in the combustion chamber. Three sparks in series at one impulse of the ignition system with a possibility of spark-over around the full circumference (360°).Īuxiliary electrodes deposited on insulator tip with special patented technology lend the spark plugs unique properties, particularly the balancing of the individual indicated mean pressures and shift of their average toward the upper limit, which in the final consequence increases engine power. Spark plugs with two auxiliary electrodes on the surface of the insulator tip. UNIQUE SPARK PLUG MADE BY APPLICATION OF PATENTED TECHNOLOGY ![]()
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