Which spark plug do you guys use with the 400- 500's? I stopped by the dealer to get a plug today, and didn't bother to check on which one myself first because I was already in the area and hadn't planned on getting it. The **** gave me a NGK- DR7EA. That is the correct plug! For a 250 or a 300 that is. Dummy, this is how much the parts guys know. I pulled a CR6E out of mine later on to find that of course the one the guy gave me was too big. The accessory guide says that the CR6E is a standard replacement, the CR7E is for warmer temps, the CR8E is for hot conditions, and the CR8EK is to help prevent plug fouling. Also, there is a splitfire crossreference plug for these as well, and it is cheaper, so I wonder if it is even as good.

What plug do you guys run (any that have replaced that is?) I'd like to use the CR8EK, but the dealer doesn't have it so I may end up with just a regular old plug. Its no big deal really, I just wondered what others had used.

 

Andy, this may interst you: Info. Or this More info.

Tree Farmer