ChuenouXiao
Senior Member
- Messages
- 1,590
- Location
- California
I bought this spark plug for my XB from NAPA and it looks like just after the threads are align, it's already got tension comparing to the stock H-CMR5 from Redcat. Why is that? People say they use the NGK for there Redcat here so I don't know why It wouldn't fit. I don't want to damage my thread..... help me people! The stock H-CMR5 goes in smoothly with no tension until it reaches the bottom.