2001 MXZX tune up

Fall is here but snow is coming soon. Last year at the end of Winter our snowmobile a 2001 Skidoo MXZX started acting up. We found out that the fuel filter inside the tank have fallen off sending dirt and plastic chips to the fuel pump. We replaced the inside filter and the outside filter along with the fuel pump but it still didn't run well. Possibly some of the dirt made its way into the carburetors now we have to remove the carburetors for cleaning.