#Brisk spark plugs gr12zc full
#Brisk spark plugs gr12zc series

Here is a representative picture (not the one I installed): This is the link to their Multispark product page.

#Brisk spark plugs gr12zc series

There is no electrode that needs to be gapped ZS,ZC, TXS series plugs. I just put a Brisk electrodless plug (called the Multispark series by Brisk) in one of my thumpers.

in the meantime for anyone using them pay close attention to the fitting instructions and torques! If I get a replacement for the faulty/broken one I will let you know how I get on. I like the design though - with the candle plug you do get 3 sparks per firing, 2 surface discharge and 1 air gap and each spark can fire anywhere 360 degrees around the plug so each spark will find the richest spot in the air/fuel gases and fire there to give you the best combustion. I just installed the plug by 'feel' and only had the problems with the brisk, that said I am most used to 2 stroke plugs (much stronger) so don't know if it was the plug or me but it was a bit worrying! 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.

#Brisk spark plugs gr12zc full

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 three electrodes give better wear without the use of expensive exotic metals.