Which spark plugs?

[mozzandherb]

So after not changing my plugs in a while (stupid me) I changed them, but I switched from an ngk bkr7e iridium plug to the ngk bkr7e which is much cheaper. I am now going to be switching my plugs my more regularly, just wondering with my set up if the ngk bkr7e copper plugs are o.k? Or should I stick with the iridiums?

[dbsharp]

what exactly is your setup? I personally would rather have a copper.

[d112crzy]

what exactly is your setup? I personally would rather have a copper.

Iridiums help, especially up top. But for a motor that doesn't rev too high and isn't putting out much power, the coppers do just fine.

What's your gap at? I think the 7's should be just fine for you.

[mozzandherb]

Iridiums help, especially up top. But for a motor that doesn't rev too high and isn't putting out much power, the coppers do just fine.

What's your gap at? I think the 7's should be just fine for you.

I've gapped them at 38-40

[dbsharp]

I have heard that the iridium tips have been known to come off the spark plug.
I have also heard that the iridium tip will reak havoc on motor internals.
Doesn't sound good to me. I have not seen it first hand, so I can go by is what Ive heard.

[d112crzy]

You don't get any break up at that gap?

[d112crzy]

I have heard that the iridium tips have been known to come off the spark plug.
I have also heard that the iridium tip will reak havoc on motor internals.
Doesn't sound good to me. I have not seen it first hand, so I can go by is what Ive heard.

Yes, when gapped improperly. Most people don't know how to gap them. The tips are very delicate. You need to try to not rub on the tip as much as possible. If the gap is too tight, you need to use some pliers to bend the ground strap back. Most will try to pry the gapper between the tip and ground strap, which is where they fuck up.

[mozzandherb]

You don't get any break up at that gap?

It seems to be running fine, but I havent driven it much, what gap do you recommend?

[dbsharp]

run the largest gap you can without breakup.

[dbsharp]

Yes, when gapped improperly. Most people don't know how to gap them. The tips are very delicate. You need to try to not rub on the tip as much as possible. If the gap is too tight, you need to use some pliers to bend the ground strap back. Most will try to pry the gapper between the tip and ground strap, which is where they fuck up.

This makes sense. I have wondered how the tips break off. I couldn't imagine that ngk would produce a spark plug that falls apart for no reason.

Using a proper spark plug gapping tool (not the round pos that you get at the counter at auto parts stores) will allow you to adjust the ground strap without putting pressure on the tip. no need for pliers. I got mine for 1.99 at autozone.

I USE THIS

[rob_is_legend]

a proper spark plug gapping tool (not the round pos that you get at the counter at auto parts stores)

I got mine for 1.99 at autozone.

[d112crzy]

These are the ones 90% of people use
http://www.expeditionexchange.com/ul...n001%20055.jpg

They're not very accurate, nor will the gaps be consistent with that type of gapper. The difference and inconsitency isn't enough to worry over, but when you're gapping iridiums, using those will mess the tips up.

[robert@bisimoto]

Iridiums help, especially up top. But for a motor that doesn't rev too high and isn't putting out much power, the coppers do just fine.

x2. You should be fine with copper.