Green spark plug

[Steven P]

My car does 10,000 miles between annual services, spark plugs every few years when I remember. Same manufacturers, same materials, if that helps.

 

As Stubby, and with cars too, I'll change them if performance drops - but after changing the filters first

[Donnie]

Another quick one, fuel filter/air filter. How often are you getting new ones of them? I'm yet to change either.

[Dan Maynard]

As above I'll change a plug when it's not starting as clean. Difficult to compare service intervals with domestic tree surgery though, none of my saws run every day, and quite a few days doing hedge or silky only reduction don't use a chainsaw at all.

 

Do you have a quieter season cutting like over the summer? I guess in your case the cost would be in being miles from anywhere when the saw won't start, better to chuck in new plug and filters once a year anyway so they never cause a problem.

[pleasant]

Oxidisation of the copper core element of the plug. Here:

Erosion, Corrosion and Oxidation

The material of the electrodes has oxidized, and when the oxidation is heavy, it will be green on the surface. The surface of the electrodes is also fretted and rough.

 

How do I "read" a spark plug? - NGK Spark Plugs

NGKSPARKPLUGS.COM

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Learn how to analyze your engine's overall operating condition just by looking at your spark plugs. Find this and other DIY...

 

 

[pleasant]

2 hours ago, JDon said:

Another quick one, fuel filter/air filter. How often are you getting new ones of them? I'm yet to change either.

My customers tend to be very 'proud' of saying things like that. And they tend to be the ones that come in all of a panic as they have an urgent job on and the machines let them down.

 

Preventative maintenance if the cheapest maintenance of all IMO.......anything else is just waiting for your machine to fail- one day when you need it.

[Blackbriarwoods]

10 hours ago, JDon said:

Another quick one, fuel filter/air filter. How often are you getting new ones of them? I'm yet to change either.

When we were felling all the time, I changed filters and plugs at least once a year and if the fitter came out to any of the machines I'd get him to check it over while he was around  (he'd change things if he had replacements in the van). 

[AHPP]

Google gave me the NGK reading guide but it’s nothing like the green I’ve got. I’ll email NGK and thrash out a royalty arrangement for them using my photos. 

[Donnie]

20 hours ago, pleasant said:

My customers tend to be very 'proud' of saying things like that. And they tend to be the ones that come in all of a panic as they have an urgent job on and the machines let them down.

 

Preventative maintenance if the cheapest maintenance of all IMO.......anything else is just waiting for your machine to fail- one day when you need it.

Normally my Huskys blow up once every six months. How do I preventative maintenance that? 😂