Yeah, I bought a couple of the kits off of ebay. @$7.00
These get torn up on several brands of scooters. Don't know why they are so over tightened from the factory.
Just "snug + a bit" is fine for the torque. I use a dab of silicone grease on the O ring.
I made it a practice to go around my new scooter and break loose a lot of fittings while it's new - to keep things from seizing. (like the exhaust cap/nuts with some anti seize) Some of the big phillips screws in the body panels require the correct bull nose phillips to break loose.....tight!
It's a great scooter - resists most efforts to screw it up.
Goodness knows - some of us have tried!
Stig