hotairgnx548
hotairgnx548
- Joined
- Apr 7, 2010
- Messages
- 436
I thought I saw a thread on ngk yr5 spark plugs you commented on (I may have dreamed it) my question is what to gap them at? I understand the none projection tip may be less forgiving to pre-ignition. I have used ngk ur5's gapped @ 28 do I need more gap with the yr5's? Thanks and See Ya! John