Mine pops off if I look at it. The bottles not likely to be the problem. Keep an eye on your temp gauge. Catch it before it over heats. Otherwise you’re gonna score the piston and barrel, and yeah, skinny alloy heads warp for a pastime.
How many miles of good riding did you get before problems?
Also, have you checked your 2 stroke oil?
Not sure if bogging down is a partial seizure? Sure hope not...