Does the fuel filter just spin off? How does the glass bowl come off of the bottom of the fuel filter.Sorry for being dumb about this, inherited this tractor from my dad, its been sitting 2.5 years, just got it up and running, and I think it has some trash in the fuel and the fuel filter needs to be changed, and I have one in hand. Didn't find any of the manuals for the tractor when I got it, any help appreciated, kids want a hayride tonight! Thanks.