Spark plug boot & wire

Think I screwed up.  I have a 912 uls with the new 90 degree spark plug boots (not screw on).  I didn’t install the original, so I don’t understand the procedure for connecting the boot to the spark plug wire.  And I can’t find detailed instructions in the documentation on how to install these. 

so today while changing the plug I managed to pull the boot off of the wire on the bottom #1.  Can I remove the cable tie, stick the wire back in, & put a new cable tie on it?  That doesn’t sound right to me.  I remember the screw on versions.  This isn’t that kind of boot.  

suggestions & advice welcome.