ORIGINAL: jedijody
An NGK CM-6 will last most engines two years or more. At least one engine retailer includes genuine NGK CM-6 spark plugs with new DLE engine purchases, another will take them away from you if you have them service your engine.</p>
All of the DL engines that I have bought from that Jodi guy out in Washington comes with the NGKCM 6. Spark plug.He changes them at his own expense.I have been flying the RCEXL-Radium
spark plug and they seem to be fine.Run no better then a CM-6.The DL 20 pulls the snot out of the valley view profile,and I am kinda getting used to the looks of it.
BCCHI