Spark plug gap...How much does it really matter?
 

Did a bonehead thing yesterday :rolleyes:

I changed the plugs in my Cig. On the port engine, I gapped all of the plugs. They were out of the box right at .035 and I set them at .040. Got done with the starboard engine and realized that I completely forgot to set the gap, most likely because I was in a hurry......and was bleeding all over the place from a phucking hose clamp slicing my hand. :angry-smiley-038:

My question is, does it really matter? If it does, no problem. I just pull them out and gap them and throw 'em back in. Didn't seems to affect performance at all. We managed to do a 6000rpm flyby of the neighborhood.....just to pizz off the sailboters. :D:D:evilb::evilb:

If ya pizzed off the bloboaters, you did good.....
Go do it again, just to make sure everything is alright.

I'd leave them alone, the .005 difference is not going to be noticeable.

Naturally aspirated, doesn't matter a whole lot,.005 that is, blower or turbo, pull em out

wanna have some fun,,,,,go get spark plug gappers from auto zone,,,then orilies,,,then pep boys,,,,,gap plugs,,,,then check them with a feeler guage

your fine. just run'em

Why does it matter in a blower motor app?

i run mine .035 to .040 on both of my blown boats,back in the drag racing days [blown alcohol] i gapped them at .020 and used a msd 20 magneto.

increased cylinder pressure blows the flame out across the larger gap

I would reset them or you just through your money away. By the time you wrote and posted this you could have had it done.