4tec Compression Gauge Fitting - Mine won't fit!

[IDoSeaDoo]

Hey guys, I was just wondering what fitting I have to get to be able to test the 4tec engine compression. My old gauge is fitted to test the 2stroke engines, but won't screw into the 4tecs... HELP?

 

[pwgsx]

O man, I cant remember but its a odd one. I ended up buying this http://www.autozone.com/autozone/ac...ster-plus/_/N-25j0?itemIdentifier=273351_0_0_ and then returning it after I used it.

 

[pwgsx]

12 MM - just found my post about it

 

[IDoSeaDoo]

Just bought the adapter, THANKS!!