Hi guys. Got 2018 txt 250 and tried to replacing the top end but I really can’t find way to how to tighten front cylinder base nuts.
 
	Plain ring wrench doesn't fit at all neither most slim wrench(signet 30493) I got.
 
	Was tried to tighten with open end wrench but seems like nuts are gonna stripping.
 
	Any idea how to tighten these nuts with torque spec??