Don’t know if you’re still trying, but I found the answer buried in another thread here.
The default appears to show up to 55 words after the title of your post.
Paste the following into your functions.php to alter that. (As shown, it will cut it down to 10)
function minimatica_excerpt_length( $length ) {
return 10;
}
add_filter( ‘excerpt_length’, ‘minimatica_excerpt_length’ );
If you want no text beyond the post title, set the above to 0. However, by default (at least on mine) it was still adding a “…” as if there was additional text coming.
To get rid of that, alter the minimatica_excerpt_more function to read:
function minimatica_excerpt_more($more) {
return ”;
}