spark plugs

[OB_gurrera]

Is it best to set the gap to the low end .028 ,or th the high end .031?
Has anyone though of using split fire plugs?
Also do I have to remove the tank to remove the air box?
Thank you Sam

 

[OB_VegasDude]

keep away from the split fires, my friend tried them and gas mileage went to **** and could notice no difference in performance.

 

[OB_Animal]

Please NO SplitFires!

Ground electrode coming off one ate another motor of mine and since then I've heard many a horror story about them ... STAY AWAY!

 

[OB_Bikenut]

The best plugs on the market as far as I know are NGK-CR9EVX. That is the platinum edition of the stock plug. They aren't cheap either. I have ran them in my last 2 bikes including my '00 busa with excellent results, and agree with "no spit fryers". Have heard a lot of bad things about them.

 

[OB_gsx1300rguy]

NGK,CR9EK`s also work very well(dual electrode)The only plugs I`ve ever run.

 

[vman1300]

Use the NGK's and if someone offers to give you a set of split(mis)fires....just say NO!!!!!!!!

 

[OB_Earl]

Yeah, the cr9ek is the one to use. I used it in the 99 and 00. I could tell a differance in the quality of the idle with the ek. It was much smoother. By the way---what is an evx and how is it different?

[This message has been edited by Earl (edited 26 April 2000).]

 

[OB_valklex]

Bikenut, I bought the EVX too but without asking how much, and I wasn't happy to pay $15 bucks for each one. I didn't notice any difference from stock ones, and I'll never buy them again, but I was hoping to at least being able to use them a lot longer than the stock ones to justify the cost. How many miles can you get out of this plugs compared with the stock ones? I don't ride the bike hard at all.

 

[OB_Best Cycle Parts]

I sure hope you didnt pay $15 dollars for the EVX plugs....Should cost no more than $9 each........

[This message has been edited by Best Cycle Parts (edited 26 April 2000).]

 

[OB_mrabusa_h]

I'm also running the NGK,CR9EK. I like them more then the denso's

 

[OB_Best Cycle Parts]

CREK is the dual electode plug, and the EVX is the same size, but with a single fine platinum tip on it.......Less voltage to fire the single electode, and supposedly longer life

 

[OB_gsx1300rguy]

Voltage requirements are the same to jump a spark .Dual electrode plugs only fire to one gap at a time ,there main benifit is they have an open flame front compared to a single electrode plug.And they do last longer than conventional plugs due to the fact that they have two ground pathways,hence longer time for the gap to open up due to electrode degradation.The spark will always go to the closer electrode.Platinum plugs have a greater dielectric strength and are less prone to electrode degradation.Voltage requirements are due to total resistance across gap and the resistance through the plug.Personally I`ve always had bad luck with platinums thats why I run CR9EK`s but what the hell do I know.

 

[OB_valklex]

When do you start having degraded performance with spark plugs? 4K miles? 8k? For what they cost, I like to change them every year (avg. 3K miles), but I don't want to be throwing money away unnecessarily. I'm trying the EKs next to see if my idle improves.
Performance-as-new life on plugs: E? EK? EVX? Thanks!

 

[OB_gsx1300rguy]

The most I`ve driven on the same set of EK`s was 18,000 miles in one year(I change mine every year also) and they looked like new.

 

[OB_Kurt]

Just food for thought fellas. The dual electrode plugs (EK's)perform better because they also increase compression slighty by taking up more air space in the cylinders.