USAC updated a few of its rules this week.
Animal Tech Update
February 13, 2017
There had been an update that I thought we sent out, but did not. My apologies as I made a mistake on this while e mailing out and showed my lack of "web mastering" while uploading the tech manuals to our website. These updates are in the tech manuals which are now available on our website, http://www.usac25.com.
Please look at the #USAC25 TECH manuals. Any tolerance changes from 2016 - will be highlighted in yellow.
The Honda 120 Tech Manual is not updated at this time but will be soon.
1.Spark Plug - Any automotive type, unaltered with stock washer. Indexing washer is not allowed. No taper seat plugs allowed.
Jerry Coons, Jr