Spark Plug Question

[MrLarkins]

I got a NGK B7HS plug to replace the stock plug. What effects will this have on my motor running?

 

[Pablo]

The 7 in theory is a slightly cooler plug than the 6 or the 5.

Lots of good info here:

Tech Info - Spark Plugs Overview

I run the 7 and like it the best of any plug....

 

[Chitty]

I could not find a NGK 5HS, but did get a 6HS and just put it in yesterday. It seems to be ok, but I have only gone a few miles.

 

[MrLarkins]

well, the spark plug I have may not be hot enough to burn up the oil right?

 

[Pablo]

well, the spark plug I have may not be hot enough to burn up the oil right?

In theory yes. BUT it (B7HS) works really good for me. Not one miss.....very smooth and powerful.

 

[Can Harm Hen]

I run a B7HV. It's supposed to be non-fouling, so even if it doesn't get hot enough to burn off the oil, it will still spark!

So far, no problems in the four months that I've been using it.

 

[Bikeguy Joe]

It should be O.K. to run Mr. L.

If you find it fouling after say, six tankfulls, try to find the 5 plug.

 

[MrLarkins]

rgr that i'll keep it