Compression tester adapters
Hi all
I've been meaning to do a compression check on the bikes recently, and after a search in the shed I have found a Gunson Hi-Gauge compression tester which I last used about 10 years ago. It has an 18mm thread on the end, which is no use for bikes. The more expensive Gunson gauges come with a set of adapters to fit 14/12/10 mm sparking plugs. Does anyone know of anywhere I can buy these adapters separately (or anything similar)? They aren't listed on the Gunson website, except as part of the bigger kit.
Am I right in thinking the NGK DPR8EA-9 has a 12mm thread?
Cheers
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