I was told NGK (BKR5E) spark plugs would work good in my 600 sp. So I bought some. I was reading on this fourm and they said to use NGK (BKR7E) spark plugs. Should I not put the ones I have in? What's the difference between the two? Hope somebody can help. Thanks Jason

 

Read the owners manual.

 

I know read the owners manual smart ***. Like a lot of things you buy for your 4 wheeler are not in the owners manual. I had heard these were good plugs to use so I bought some. As I hope you well know NGK are not found in the owners manual. Anybody got some helpful info let me know.[img]i/expressions/face-icon-small-smile.gif[/img]