What Plugs

[fawudd]

I just picked up a 1974 750K and wondered if there are any preferences for what spark plugs to use. I did try the forum search, but did not find anything. TIA

[gonebiking-2]

NGK D7EA or NGK D8EA should be the ones to fit. The D8EA runs a little hotter then the D7EA so you have two choices

[woodsrider250-2]

NGK D8EA....These will cross reference to other brands, but stick w/ NGK, IMO....

EDIT ****the "7" is hotter....lower NGK number is hotter!*****

IMO, and many others, always run the coldest pluf you can get away with.  Especially on an air cooled motor.  I run "9's" but you have to make sure you have a good tune, and hotter coils will help with this.

Run the 8...

[gonebiking-2]

You took the words right out of my mouth. The higher the number the colder the plug - especially with NGKs .