Spark plugs?

[TommyHotWheel]

Brisk or NGK Iridium...and I index all of my plugs, its an OCD type thing.

[Amber Lamps]

Originally Posted by TommyHotWheel

Brisk or NGK Iridium...and I index all of my plugs, its an OCD type thing.

I thought about Brisk but for the money,I ended up with NGK Iridium.

[racedoll]

I use NGK.

[BobTheBiker]

I run Bosch or NGK. they're the only plugs I'll trust. anything I see with champion plugs, I'm visiting autozone instantly for NGKs. only thing on earth I trust champions in is a lawn mower, and even then I dont.

[askmrjesus]

Originally Posted by TommyHotWheel

I index all of my plugs, its an OCD type thing.

Yes, but which way do you point them?

"Conventional Wisdom" dictates that you point the gap toward the intake (so the ground strap doesn't block the air/fuel mixture) but some engine configurations seem to work better with the gap facing the outlet valves.

JC

[Rangerscott]

I put in NGK iridium cause I dont feel like hassling with them for awhile.


A spark plug is only as good as the ignitions source. You can put in the world's most expensive plugs but they will only spark with what can be delivered to them from the coil packs/distributer.

Upgrade your whole ignition system and you will see an improvement.

[101lifts2]

Originally Posted by askmrjesus

Yes, but which way do you point them?

"Conventional Wisdom" dictates that you point the gap toward the intake (so the ground strap doesn't block the air/fuel mixture) but some engine configurations seem to work better with the gap facing the outlet valves.

JC

If the thread starting position in the head is the same then in theory the plugs will all be at the same position. It shouldn't matter which way the plug points if the air/fuel charge has swirled enough to make the mixture homogenous.

[askmrjesus]

Originally Posted by 101lifts2

If the thread starting position in the head is the same then in theory the plugs will all be at the same position. It shouldn't matter which way the plug points if the air/fuel charge has swirled enough to make the mixture homogenous.

Those are nice theories.

Unfortunately it doesn't work that way in the real world.

For one thing, even if the heads of mass produced bikes had all their threads in exactly the same sync (which they don't) the spark plugs would still not be. The ones I'm holding in my hand aren't, and they weren't exactly cheap, so, so much for theory #1.

As for theory #2, whether or not the fuel/air mix swirls perfectly, depends on many variables, including variables caused by after-market mods like air filters, so, so much for theory #2.

The question isn't whether or not the bike will run, it's, can you make it run better?

JC

[ZUKIMON]

NGK FTW. If that's not available and I have to have something right then.......ND will usually suffice.

As for Bosch, I have removed more of those plugs from car engines for causing misfires than any other plug. I have actually removed Bosch Platinum plus 4's that were only 30 miles old cause they were causing more issues than they were stopping. I don't like 'em and will never use them again. I also only like a Champion in a lawn mower or chainsaw.

[marko138]

I think I've got a Champion in my mower. Suckers gotta be 10 years old at least, runs like an animal.