I don't know if I'm using the correct spark plug or not .
I'm using fr7dpx bosch ..
I was always burning to top of the plug at the same time I replaced these spark plug and I increased the fuel jet ..
I called summit and they gave me NGK double platinum and I burned two sparks of them It costed me alot ..
But I don't really remember the part no of it ..
The stock spark plug is NGK-bkr6e .
How to go one step colder ?
Should it be bkr5e or bkr7e ??
Thanks alot I know that I'm asking so much
But I'm really intrested in asking you ..
Thanks all