Spark Plug-Throw or Clean

[thovda]

So after going through a dozen plugs while tuning the KZ400, when or when shouldn't you bother cleaning the soot off of them. If after one hard sooting are they garbage? I read you can soak them in toilet bowl cleaner...I've just been spraying them with wd40, good hard scrubbing with a wire brush, and spray them with WD again. Effective, I don't have a clue?

 

[AlphaDogChoppers]

They cost $2. Throw them the fuck away.

 

[thovda]

What I Was Thinking But $3.50 A Pop Up North Here, Limited Budget, And A Half Dozen ASession, F N A!

 

[AlphaDogChoppers]

A plug with carbon on it will clean itself in service once an engine is jetted properly. If they foul to the extent that they will no longer fire, I throw them out. I've never been able to get a foul-shorted plug to fire again.

 

[my-79-750-k]

Willing to bet oven cleaner would get the carbon build up off em, enough to run til you get it dialed in.

 

[SONICJK]

Or you can buy a spark plug cleaner hahah

I just get new ones, cost of tuning.

 

[DoubleClutch]

I buy plugs but the box's But I have a Repair shop and go threw allot of them. If your plugs are sooted up change them out and get it tune in.

 

[frogman]

I keep them around, I have several engines that use the same size and type, one is a generator that kills them once in a while, usually when you need the MFer to run.

I take a propane torch to them heat till they smoke and then brush clean, basically what an in tune engine does.

 

[DeanJ]

They cost $2. Throw them the fuck away.

rich boy ;D

I take a propane torch to them heat till they smoke and then brush clean, basically what an in tune engine does.

+1

 

[AlphaDogChoppers]

I heard an interesting spark plug cleaning tip on another forum today. Throw them in a container of bleach for 12=24 hours. Cleans them right up.

 

[frogman]

Be an idea, bleach is a corrosive agent though wouldn't leave them long, just like carbs in lemon juice/simple green.

 

[AlphaDogChoppers]

Bleach is an oxidizer, so it would eat the carbon. Won't affect the porcelain or wear the electrodes like blasting will.

 

[SONICJK]

I'm not sure bleach would take care of the carbon deposits.
Anyone know the chemical composition of the burned on shit on plugs and pistons etc?

 

[OJ]

Sea foam seems to work on carbon deposits on cylinder head so should work on plugs too.

I have been burning and brushing the plugs and re-using at least once.

 

[AlphaDogChoppers]

I'm not sure bleach would take care of the carbon deposits.
Anyone know the chemical composition of the burned on shit on plugs and pistons etc?

It's a witch's brew of organic molecules and carbon, all of which would be oxidized and dissolved by bleach.