Its funny that you posted this... I just got done doing a test (last week) with a resistor plug, a non resistor plug, and a resistor and non resistor plug cap.. Got a few voltage reading between all combinations under the sun between the caps and the plugs..
We used an out of the box brand new Suzuki coil and my used suzuki coil in the testing

I have a friend who has a bunch of electrical testing equipment (scientific testing equipment).. We ran tests for 3 hours in every combo known to mankind. I ended up ditching the irridum plugs for my application..

Different strokes for different folks!
RIP Gary Coleman.

 

Its funny that you posted this... I just got done doing a test (last week) with a resistor plug, a non resistor plug, and a resistor and non resistor plug cap.. Got a few voltage reading between all combinations under the sun between the caps and the plugs..
We used an out of the box brand new Suzuki coil and my used suzuki coil in the testing

I have a friend who has a bunch of electrical testing equipment (scientific testing equipment).. We ran tests for 3 hours in every combo known to mankind. I ended up ditching the irridum plugs for my application..

Different strokes for different folks!
RIP Gary Coleman.

agree'd!! i ran a similar test years ago on my quad with different coils, wires, boots and plugs. i ended up going with stock coil, an NGK plug wire assembly and non-resistor b8es plugs. my bike does NOT like resistor plug and aint too keen on irridiums.

 

yeah i guess its all in the bike. i was running a br8es plug before and now i threw the iridium plug in and it starts first kick everytime cold or warm and seems alot better at all rpm ranges.

 

Irridium actually has half the electrical conductivity of gold and a 1/3 of the conductivity of silver.

From what i saw in these old bikes with the old coils is this...

Well i am sure you can guess... lol


These old coils are best with no resistors in the plug or in the cap (in my opinion).

But irridium is a great low maintenance plug compared to gold or silver tipped plugs.

So maybe its a trade off.. For some people one outweighs the other...

Either way, its all up to the end user..

I read if you have a 50hp motor and you have weak spark and say its only producing enough spark to ignite 4 out of 5 times... you now have a 40hp motor

I run the irridums in my KX, but it was designed for it.. the LT's were not..

But if it works for you and you are happy... then thats what matters the most!!

 

jyklnhyde, that would be some good info to post in the general 2 stroke info section, or the suzuki section.

 

Funny thing is My hybrid I run a common br8es and it loves it......my zilla i run normal plugs and its hard to start throw in a Irridium and it fires right up.....both bikes have 1990 motors but different wiring oh ya and I took the lighting coils off the hybrid stator

 

Dont wanna stray far off the subject, but Im running a E3:18 Plug in my zilla, and it seems to help my bike ALOT more as far as cold/warm starts and warms quicker into nice powerband compared to my 6$ ngk race plugs I bought.

 

I have a guess on the irridum plugs starting the bike easier..

BUT ITS ONLY A GUESS.. Probably totally wrong but just a guess

One thing i saw with a resistor plug, resistor cap, or a combo of each was this...

When we added a resistor to the plug or plug cap, there was a noticable slowing of how the spark reacted and also voltage delivery. When one resistor was added (like a plug irridium Br8eix) you could see the difference of how the spark was delivered and also see the difference in how strong the spark was (weaker spark with a resistor also less voltage delivery).. Now when we added a resistor plug and a resistor cap, you could see the spark slow down even more and the voltage delivery was even less.

When we added one resistor the length the spark could jump (the gap) was decreased with a non resistor plug by about 3/16. When we added another resistor (plug cap) the length the spark could jump was half of what it could jump with a non resistor setup. There also a difference in spark delivery between The 3 non resistor plugs we experimented with.. B8EG B8ES B8EGV

So my guess is that maybe and i say maybe because i am just guessing... If the bike is getting a little too much fuel delivery at initial startup then the slowing of the spark might just be helping it ignite the fuel in this case. But i would think a weaker spark would hurt you in the power delivery and the burning all the fuel you are supplying it with when you are running hard..
Like i stated above, i am no scientist and am just shooting in the dark...

Also the LT coil to plug wire is copper... and if this has been on your bike for 20 years, then there is bound to be corrosion within the wire itself.. So make sure your wire is in great shape to get the best voltage delivery to the plug... non resistor or not

I am no scientist, and am only guessing after doing my on test regarding resistor plugs, resistor plug caps and a combo of both.. With an Irridum plug and all the other plugs above.. So dont tear me apart on my guess... hahahaha

OH AND I FORGOT....
If we even added moisture to the above tests, then the resistor tests above got even worse inthe amount of voltage drop for a resistor plug or cap or combo

 

im not gonna tear you apart or anything hahaha just thought id share my experience. but good findings man! thats good to know. well i got a b8egv plug in the mail coming to my house soon so i will see how that goes. but honestly it seemed to help alot and i dont know why but i like the plug. im gonna try the same one in my ktm 500 as soon as i get the rear tire back on and get it rolling around again. if it helped in starting my quad i hope to god its gonna help in starting the big 500 because that thing wears me out trying to start it!! dang left hand kickstarter, oh and probably the size of the dang piston contributes to that too hahahaha

 

since we are on the subject of all of this electrical talk, in theory, if i replaced my stator with a brand new stator (or at least the source coil or the coil that gives power to the ignition) and if i got a lets say one of those nology coils, i should get a bigger and more powerful spark? and if i did all of that, ran brand new wire through the wiring harness for the power to the coil and plug, it should help with a better spark and in theory more power?

 

just looking at nology's website and looking at their spark plugs and i really want to try their silver spark plugs. they seem to know their shit and i think guys that run like a br8es or anything comparable could use nology's L4YS silver plug in the 8 heat range. they have the same reach and same hex size. im sure it would work.

 

for sure. it all boils down to what you like to run.. I was only talking about the old LT coils during my test

But you will see that a resistor plug calls for a smaller "gap" due to the loss of "current flow" because of restriction

Nology is a good coil..

 

one last thing from me for a while...

if i where to get a nology coil, would i be wanting a low ohm coil or a higher ohm coil? they have the options of .3, .6, and 3.0 ohm coils.

if i ever did get this i would get the coil, the hotwire, and the silver plug and see how well it goes as a package.

 

I havent had much success with iridium plugs in my quad, dirtbike, or the Baja.
I never did any tests just real world observation.
If you can run it it the non-resistor plug will always put out more juice.

 

theres an old saying ; if it aint broke dont fix it .. if you like the way the irridiums feel then run them,personally i have never cared for the eix plugs they do start easier but seem to get the spark drowned out at high rpms *in my experiances*i would not hesitate ot get a nology profire kit if it were me

 

Too bad someone don't make a type of conversion for the LT250 like they did for the TRX250R. I've got the CR ignition on mine and love it. How hard would it be to make an adapter for the LT?

 

shouldnt be all that hard to do jared. should be a matter of taking an old LT stator and making a template. reverse engineer it so to speak. then having the plate machined. the problem/stumbling block may lie in mating the fly wheel to the crank but i'd have to have it all in front of me to determine the difficulty.