I have a 98 Polaris Sport 400 that takes a NGK BR8ES spark plug.

I have a 99 Blaster that takes a NGK B8ES spark plug.

They both have the same gap.

What is the difference between the two and can I use either in both ATV's? I hate carrying extras of both.

Also, I've got a hopped up Banshee that uses a B9ES spark plug. Can I just get one plug to cover all three quads?

Thanks!

 

The R in the BR8ES just means it's a resistor plug. To my experiments of changing around with plugs they make no real difference. I used to run a B8ES in my Banshee but tried B7ES since it needed a hotter plug when it was first running and then tried a BR7ES. After I got it all straightened out I went back to the B8ES and then tried the BR8ES and for me I thought it might have gained power but I think the only reason I thought that is because I wanted it to be better. Bottom line it doesn't really matter except that machines that are supposed to have the resistor type plug should never change to anything than a plug that is made for the resistor ignitions and it doesn't hurt using resistor plugs in non-resistor machines.

 

I am a little confused with the last response. Any others?

 

He's saying: use the BR8ES plugs in both quads.

 

I was running BR8ES plugs in my Banshee and was constantly going through plugs. Then I switched to B8ES and haven't had to change plugs since.

 

It was just the opposite for me.

 

Does anyone else have any experience with this topic and offer advice?

Thanks!

 

rob4092,
The difference between the br8es and the b8es is a 5000ohm resister inside the plug to suppress igniton noise. Run the blaster and sport 400 on br8es if you don't want to buy different plugs you won't notice a difference. The banshee uses a colder plug than the other two so you will have to buy a seprate plug for it.

 

the point is you can use any in any of the quads. OK!!!