Yep, I would also suggest cleaning the fuel tank and certainly checking/cleaning the petcock filter/screen. Be sure to fit an 'inline' fuel filter too, for me this is a must on every ATV.
If your tank is dirty and has sediment in it then unfortunately your going to have to strip your carb down and give it a thorough cleaning again.
98 300 Fourtrax 4x4
Custom built mud bike - Now sold.
2004 Foreman 450S
Fully overhauled (nut & bolt rebuild), 2” lift kit, 28” mega mayhems, ITP delta rims, ES floorboards, 22” LED lightbar, Pyle Bluetooth sound system.