Originally Posted by kolevski
Thanks Mike I watched a handy video on youtube and now I know what you mean with the tool, but can having the incorrect gap really make performance suffer? for example if we need them at .34 and I put them in with .40 would it hurt my performance?
spark is what makes it all work....too close not much spark, too wide...not a good spark...burn hotter...plugs wear out sooner...I would say if you missed by a few thousandths, not a problem....I have a one step colder plug going in soon.....