Help!!! Which is the proper spark plug?

[jd21476]

So I went to the dealer to get new plugs for my 1994 FX1 w/ 701 and they gave me NGK BR8 ES plugs. But the ones I pulled out are B8HS and they are shorter. I don't want to put the longer ones in and have them hit a cylinder head. Which plug is proper?

 

[SmittySX]

B8HS

 

[jd21476]

The plugs I pulled out looked brand new so I just reinstalled them.

 

[Fro Diesel]

If the motor has an aftermarket head use the ES plugs.

Stock motor use HS the shorter plugs.

Solid top NGK only for your two stroke stuff.

 

[Harbor]

Use resistor plugs and plug caps to prevent EMF from interfering with your CDI controlling the coil

 

[SmittySX]

The solid top plugs are nearly impossible to find, locally at least.

 

[kurtwolff]

I have had Advance Auto order them and had them the next morning for those that like to run them


Sent from my iPhone using Tapatalk

 

[Fro Diesel]

Hope this helps!