what size thread is a c'saw spark plug

[Charlieh]

what size thread is a chainsaw spark plug? reason being i want to get a compression tester and want to make sure i get the right size

 

just dont ask why it involves a rash purchase and ebay

[Mesterh]

Same as a standard 14mm car plug iirc, the skinny style plugs.

[Charlieh]

cheers will get one ordered, the piston looks good which worries me as it pulls over very easily

[combined tree services]

what have you bought on ebay then mate ?

[TimberCutterDartmoor]

Wasn't that girt big Dolmar 153 was it?!

[Mesterh]

TBH I would save the cash from buying a compression tester I dont think that they are that good at giving a good reading on 2 strokes.

 

I remember trying one on a 020 that was knackered but it still gave a decent reading 150 psi iirc compared to something like 170 psi on a good one.

 

If the saw cant hang from the pull cord for at least a second or 2 then drop fairly slowly then it probably needs looking at.

 

Just whip the barrel off and have a look.

[Al Smith]

M 14--1.25 .