spark plugs - are they telling me anything ?

[Steve]

Ed's question has relevance for this reason: If you are running straight copper wires, then you can run resistive plugs. If you have the factory-style resistive caps, then you do not want to run resistive plugs.

Note that there are THREE areas of concern.
The wires can be "solid" or "suppression-type".
The caps can be "solid" or "resistive".
The plugs can be "normal" or "resistor".

You do not need more than one of them to be of the "resistive" type.
Actually, you don't "need" for any of them to be resistive, it will just keep your bike from affecting radios in the general vicinity.

If you still have stock wires, they are "solid".

If you have stock (or NGK) caps, they are "resistive".

Your plugs are "resistor" types, evidenced by the R in DR8ES-L.
By the way, the "L" is probably not necessary, either.

Since you probably still have resistive caps, get a set of new, proper plugs, DR8ES and start over.
Do some proper plug chops so you know exactly which carb circuit is coloring the plugs.
When you take the pictures, put the plugs next to numbers that show which one they are.

.

Gatekeeper, just for future reference, both Ed and Eric had valuable information on posting plugs, so if I may assemble it so we can be of better assistance:
When you post plugs for colour, please put them in order, left to right, 1 to 4. That way we can correctly diagnose them for you. The next to last pic is exactly what we need, and the last one is helpful but not required.
Ed's question has relevance for this reason: If you are running straight copper wires, then you can run resistive plugs. If you have the factory-style resistive caps, then you do not want to run resistive plugs. That is why his question is relevant.
Best of luck.

Thanks.....now that is telling me something.....

only problem, I don't know which one came from which cylinder.....dohhhhh

but the gaps are off on 2 of them, and they are not what the manual calls for...

so today I actually purchased new plugs, and installed them, and made sure the gap is set correctly.

I will run the bike a bit tomorrow, pull 1 and 4 and see what they look like

I am having a bit of a hard time getting the bike started, and to hold and maintain idle, today it stalled 2 times on the road, so something is going on.....

.

I only said 1 and 4 by the order in which you placed them for the last pic.
Disregard the coil being in question on those then.
Waiting on new results in correct order.

Eric

[Nessism]

Those are resistor plugs. What kind of coils, plug wires, and plug caps are you using?

Thanks.....now that is telling me something.....

only problem, I don't know which one came from which cylinder.....dohhhhh

but the gaps are off on 2 of them, and they are not what the manual calls for...

so today I actually purchased new plugs, and installed them, and made sure the gap is set correctly.

I will run the bike a bit tomorrow, pull 1 and 4 and see what they look like

I am having a bit of a hard time getting the bike started, and to hold and maintain idle, today it stalled 2 times on the road, so something is going on.....

.

1 & 4 are running rich?
It could be any or a combination of things.
Coil weak for those cylinders, rich fuel adjustment screws, plug boots not making good contact, etc.

Some thoughts anyway.

Eric

Thanks......

that much I actually knew, I wanted to know if the color of the plugs, and the look of the electrodes, etc, are actually telling me anything

.

This should help: http://www.ngk.de/fileadmin/template...en_code_en.pdf

Eric

Do these plugs tell me anything ? And if so what ?


















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