Spark plug thread size / compression tester adapter

[eric.geiger]

i want to purchase a compression tester but need to confirm the thread size and pitch before i do to order the correct one.
i looked up the spark plug and it says its 14mm thread
is this the adapter i need then for whichever compression tester i purchase?
can anyone confirm?

[feltonminicycle]

10mm for Honda 50cc minibikes. 12mm for Honda s600 & s800. 14mm for Honda CB350s and Honda AN/AZ600s. 14mm is standard for most compression gauges. Except my Nash has some freaky huge spark plugs - like 3/4".
Miles

--- In
2cylinderhondas@yahoogroups.com
, "eric.geiger" wrote:
> i want to purchase a compression tester but need to confirm the thread size and pitch before i do to order the correct one.
> i looked up the spark plug and it says its 14mm thread
> is this the adapter i need then for whichever compression tester i purchase?
> can anyone confirm?

[kaiberryman]

I agree, 14mm ,i use my thumb ,if the air is hot then the motor will run