cturek
XS400 Addict
I have been running NGK BP7ES's in my 400 per the Haynes manual which, in the ignition chapter, says that all XS400's run BP7ES. However, I'm looking thru the Yamaha Service Manual and I just read that the Standard plug is BP6ES. (It also lists the BP5ES for "Hot" and BP7ES for "Cold").
Now I'm confused. Should I be running the hotter BP6ES? Most of my riding is local, not highway riding. What plugs do you guys run?
Now I'm confused. Should I be running the hotter BP6ES? Most of my riding is local, not highway riding. What plugs do you guys run?