The husaberg was designed for easy service and by people that could think outside the typical dirt bike design we have had for many years.
You do have to disassemble and reassemble the bike a few time to be come familiar with the procedure, after you are competent with working on your husaberg the bike is very easy to work on and service.
I do understand the frustration many people have working on the bike because of it’s different design. The sub- frame and fuel tank are a different design than most dirt bike owner are familiar with but it is a good design once understood!!
Very quick and easy to disassemble and assemble!
Now the aluminum quick screws that go into the plastic, I agree it’s a little cheep even if you are careful, manufactures are always looking for a way to cut cost!!
There are many online sites that have repair thread inserts for plastic and plastic screws even small drywall inserts work.
I have had the same problems with sagebrush pulling air scoops loose and crashes(ouch) I have had the inserts on the sub tank pull out from my abuse. No fault of the tank!
I have not found a glue that holds for more than a few rides
The thread repair inserts for plastic works great or over size plastic screws and there are some good push in fasteners that might work, if you tear them loose just push them back in!
I have also used industrial strength Velcro to hold plastic parts tight works great!
Do some research online you might find something better than I have used.
Over ten thousand miles on my 2010 FE570, still runs better than new, only problems are the ones I have caused!
Have a great ride
Haskell in Idaho