Spark Plugs

[Old Dave]

Thanks for that Tiger. I know I have up to 20mm, but will look through my big bag of spanners. I might have a 7/8 inch ring if not. AF spanner’s are in another big bag somewhere.

You are of course correct Steve Jones.

I was keen to give the Accusparks a go and will fit them when I am assured that the slight extra reach will not cause a problem.. I was surprised that the various makes have different hex sizes though I think the Champions and Accuspark are the same??