I have a 1999 arctic cat 300 2x4 i been having problems with it seems to be the valves so i adjusted it but i cant find out what i need to exactly adjust them to because i sadly dont have a repair manual. It is idealing to high and im not really sure of how to find TDS on this atv it will run good for little while then it starts bogging out and backfiring and i have re done the hole carb just cant figure it out.
please help me

 

You're high idle is still carb related, you might have missed a small hole when cleaning out. The backfiring is valves. i don't know the specs for the valves on that machine but I'm sure someone can chime that in. Or if you're in a hurry you can always Google the valve specs for it, you'll need a filler gauge though.