Spark Plug Wire Woes

DougC · Oct 11, 2025

This is getting too complicated…. I’m sure my spark plug threads are metric. The plug insulator must insulate the imperial electricity from the metric plug body.

Triton Thrasher · Oct 11, 2025

What are the Imperial units of potential difference, current and resistance?

swooshdave · Oct 11, 2025

Fast Eddie said:
Make sure you get the ones for imperial sparks Dave, metric sparks don’t work.

Doh!

Schwany · Oct 11, 2025

swooshdave said:
Doh!

Be prepared to pay a tariff on the imperial juice.

Tornado · Oct 12, 2025

Whatever electrics you use, don't forget to add the sparks to the plugs...

robs ss · Oct 12, 2025

There actually is a product you can buy (in Australia at least) called...

Nulon Start Ya Bastard 150g

www.supercheapauto.com.au

swooshdave · Oct 12, 2025

Schwany said:
Be prepared to pay a tariff on the imperial juice.

Schwany · Oct 13, 2025

swooshdave said:

I'll make a note of it.

swooshdave · Oct 19, 2025

Yeah, it looks like it touches the tank but it doesn't.

I don't know where my spare plugs are so I am still missing the little screw on caps for the plugs. Storming outside anyways. I'm sure the I go to start it up in a couple months I remember.... right?

Triton Thrasher · Oct 19, 2025

robs ss said:
There actually is a product you can buy (in Australia at least) called...

Nulon Start Ya Bastard 150g

Nulon Start Ya Bastard 150g

www.supercheapauto.com.au

It’s ether.

swooshdave · Oct 20, 2025

Apparently NGK no longer offers the BP7ES in a non-resistor model. So it looks like I may need to switch to Champion.

ashman · Oct 20, 2025

Even Champion are going the resistor way, when told about it I stocked up on Champion plugs, will do me for my time on this planet, with my Joe Hunt I get very long life out of my plugs, they run so much cleaner with that big spark.

acotrel · Oct 21, 2025

Japanese is better.

robs ss · Oct 21, 2025

Other than the bit of extra power required for the spark to jump, why the aversion to resister plugs?

Schwany · Oct 21, 2025

swooshdave said:
Apparently NGK no longer offers the BP7ES in a non-resistor model. So it looks like I may need to switch to Champion.

You could probably get some BP7ES plugs from Andover for about $30 a piece by the time they get here.

Completely unnecessary to run non-resistor plugs with any electronic ignition system put together with the right components.

swooshdave · Oct 21, 2025

robs ss said:
Other than the bit of extra power required for the spark to jump, why the aversion to resister plugs?

I assumed it was because I have resistor wires. Isn't it bad to double resist?

marshg246 · Oct 21, 2025

swooshdave said:
I assumed it was because I have resistor wires. Isn't it bad to double resist?

Better to not double. IMHO, Bad to use resistor wire on a motorcycle, too much vibration for carbon-core wire. I use copper wire and resistor plugs.

swooshdave · Oct 21, 2025

marshg246 said:
Better to not double. IMHO, Bad to use resistor wire on a motorcycle, too much vibration for carbon-core wire. I use copper wire and resistor plugs.

You discussed this before. But not until after I ordered.

marshg246 · Oct 21, 2025

swooshdave said:
You discussed this before. But not until after I ordered.

Sorry.

swooshdave · Oct 21, 2025

acotrel said:
Japanese is better.

You, good sir, are in the wrong forum.

Spark Plug Wire Woes

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